Desk Lamp With Dimmer
Install Commercial Photo Controls For Lighting To Beef Up Your Company’s Security
Every business building needs a substantial amount of light during night hours for security purposes. Commercial buildings such as plants or warehouses that cater to second or third shift workers need adequate lighting outdoors for employees as they enter and leave the building and parking lot or garage. But before you rush out to look for lighting solutions, consider installing commercial photo controls for better security and to save on costs.
Commercial Photo Controls Eliminate Hassle while Saving Energy
As a business owner, you might be tempted to install the first lights you find such as bright flood lights or wallpacks, which are small lights that hang flat against a building wall. These lights not only cause a lot of glare, but also waste much energy. You will likely need to turn them on and off manually, which can be a real hassle. Even with lights that are set on a timer, they’ll have to be reset for every seasonal change. The timer for lighting won’t always be synchronized with dawn and dusk, which wastes energy by the lights being left on during daylight hours.
Commercial photo controls differ in that the controls work by sensing natural light, and will turn on automatically when the sun goes down because of the lack of natural light. When the sun rises again in the morning, commercial photo controls will detect an increase of natural light, and will subsequently turn off automatically. This means that once you install commercial photo controls for lighting, you won’t have to worry about turning the lights on and off manually, or about setting a timer for the lights at every turn of the season.
Your business will save on energy costs by installing commercial photo controls because the lights will remain on only during night hours. Commercial photo controls also work with compact fluorescent light (CFL), which saves even more energy. Fluorescent photo controls will extend the life of bulbs, which can reduce lighting expenses for your business tremendously. CFL bulbs can fit into existing light fixtures, and they use less wattage for the same amount of lighting when compared with traditional incandescent lamps. CFL bulbs also last much longer so you won’t have to change your light bulbs as often.
Where to Install Commercial Photo Controls
Develop a lighting plan that maximizes security while providing adequate lighting for employees while entering or leaving the building. Even if your business doesn’t operate on second or third shifts, employees will need sufficient lighting when going out after first shift once Daylight Savings ends because it will get dark much earlier.
The lighting should be installed at every entrance/exit as well as each window to deter burglary. Burglars usually look for a dark window or door where they can easily access it without being seen. The photo control lighting needs to be out of reach so burglars can’t remove or destroy your fixtures. Also, add plenty of light throughout parking areas and walkways. Light up important signs as well as outdoor break areas for employees.
When installing lamps for parking areas or walkways, be sure to use shielded fixtures to prevent up-light and glare. Fixtures that are well shielded help you light a larger area because the light is cast downward and dispersed sideways so the light will not be wasted.
Before choosing a lighting system for your business building, be sure to shop online at reputable lighting companies such as Touch & Glow (R). Online lighting stores carry everything you need to install adequate lighting at affordable prices. You’ll also find other items such as touch lamps and touch lamp controls, light dimmers and switches, portable lights, holiday light controls, and other lighting products. Secure your business today with commercial photo controls!
Frequently Asked Questions
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QUESTION:
How do I make my desk lamp less bright?
My desk lamp is too bright. I changed my 60 light bulb to a 40 light bulb and its still too bright. So I’m wondering they sell lamp shades I can cover my lamp with (it also has to be heat resistant because it gets very hot) in order to dim the lights.-
ANSWER:
try a 20 watt.
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QUESTION:
Plug In Dimmer Switch for Lamp?
Can anyone tell me if a plug in dimmer switch for a lamp reduces the voltage when you use the dimmer?The reason I ask is because I have a lamp which has three light bulbs. Unfortunately the light bulbs are rated for 240v and our electricity supply usually varies around 249 to 255volts. I believe this is one of the reasons my bulbs don’t last so long and blow. I have not been able to find the type of bulbs I need that are rated for 250 or 260v. The majority only come rated for 230 or 240v. I guess this is a good way to keep profits up for the bulb sellers!
If a dimmer switch does lower voltage then I could use one to maybe reduce it by 10% so that my bulbs last longer.
I use regular bulbs because I absolutely hate the energy saving ones. I’ve tried the energy saving ones previously and they are just far too dim. You need to use twice as many to get half the same amount of light. Also the light they emit I don’t think is very good for you. Plus I’m not so sure that they are that better for the environment from manufacture to scrapping and with the mercury they contain and the reported health effects from the frequencies they emit light out at.
If the government is going to ban the use of normal bulbs then that leaves me up a creek. I will have to stockpile them. I don’t like the energy saving bulbs, LED bulbs, compact fluorescent bulbs or the halogen ones either. Regular fluorescent aren’t too bad if you get a good quality tube and they’re good for your aquarium or use in an office, but in the home you want something more asthetically pleasing. Apart from regular bulbs and fluorescent the light from the rest though is either too intense or too dim and very bad.
My plan to stockpile regular bulbs isn’t going to work if I still go through them too quickly that’s why I was asking the question if dimmer switches can reduce voltage.
If they can I’d love to have some suggestions on where I can buy a dimmer switch and how much it would cost. I would need two dimmers at the moment. One for a floor lamp from Ikea and the other for a desk lamp so they both have to be plug in. I think an inline one would be good for the desk lamp. Will need to do the rest of my lights at a later date.
If dimmer switches don’t alter the voltage then I guess next option to look at would be some sort of inverter to step it down a bit from 255 to 220/230? Is that even possible? Can you get an inverter that does this that doesn’t cost an arm and a leg?
Thanks for your help with this question and listening to my vociferations on eco bulbs
John
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ANSWER:
Domestic dimmer switches do not simply reduce the voltage to lamps. They work by chopping up the alternating current (AC) mains supply into small slices. If you look inside you’ll see a small potentiometer and some clever electronics.Imagine drawing a couple of cycles of a sine wave on a piece of paper and then dividing it up into vertical slices. Now remove every other slice and see what’s left. A dimmer switch does a similar thing. Remember that the AC mains not only varies in voltage from its maximum to 0V every half cycle, but it also changes polarity so your graph will extend below the 0 line.
The chopped up electricity supply to the bulbs is effectively being switched off/on at rapid intervals. Also, you can see that some of the slices are not at the maximum voltage level. This means that the filament(s) don’t really have a chance to reach maximum temperature (brightness) before being switched off again.
In other words, the bulb is not receiving mains alternating at 50Hz, it is being fooled into receiving an apparently lower frequency.
The dimmer does not actually reduce the voltage. The apparent lower levels (from the 250v max) is simply due to the natural cycling of the AC mains supply. If it was left uninterrupted at 50Hz (raw mains frequency) then a normal incandescent light bulb will continue to glow at maximum brightness. The drops due to the AC are not enough to let it cool down.
By varying the frequency of these pulses the effective brightness of the lamp is controlled. You may even notice that they se
em to flicker slightly when set to very dim. Now you know why.Low voltage (transformer fed) lights, CFT and fluorescent bulbs need a consistent 50Hz supply and will not work with a conventional domestic dimmer switch.
I don’t know why you condemn LED bulbs. There are none available at the moment for domestic use which are designed to replace ordinary incandescent bulbs. Don’t pre-judge them on what you may see in special environments. When they are available as plug-in replacements you’ll probably find that they are much better than CFT bulbs. Most will have a daylight colour.
You can buy dimmer switches (wall mounted and in-line) at most decent hardware shops and places like B&Q and Ikea. They’re not normally expensive. I would say less than £5 for a decent one.
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QUESTION:
can you use a dimmer with LED bulbs?
I bought an LED desk lamp and want to use a plugin dimmer with it. Will it damage the light?-
ANSWER:
Should be fine.
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QUESTION:
CPU temp is very disturbing?
My computer just randomly powered off while I was gaming. But my desk lamp dimmed seconds prior to it happening, so I’m not sure if it has anything to do with it.But after re-booting I used Speedfan to check my CPU temperature, and it read 90C then it slowly went down to about 70C. I kept speedfan open and started to watch a video online and my CPU temperature shot to 107C!!!!!
I don’t know what the hell is going on. I cleaned out my PC last week, but couldn’t clean the heatsink because I couldn’t get the damn thing out of my case. Also I didn’t have any compressed air to blow it clean.
What should I do about my computer?
Ah crap I gotta open my PC (is lazy)I guess I will check that, and see if my local computer guy can hook me up with some thermal paste, but the problem is I can’t get my heatsink away from my CPU even to put thermal paste on there….
I was playing the sims 2 in windowed mode, with MSN running at the same time….-
ANSWER:
That’s too hot. I would quickly tap the heat sink with my finger (the way you would tap an iron to see if it’s hot) to see if the heat sink is really the temperature of boiling water. I think most likely, it is not. In that case, the heat sink is making poor contact with the processor. You will need to put some thermal grease, or a thermal pad, between the processor and the heatsink for better heat transfer. You can buy such things wherever heat sinks are sold. Or get a new heat sink – there should be some of that stuff in the package.I assume also that the heatsink has its own little fan on it, and SpeedFan shows reasonable RPM on that fan.
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QUESTION:
parallel and circuits question?
I want straight forward easy to understand answer please!!!
1.does the light in a parallel circuit go dimmer when you unscrew one?2.what happen to the brightness of series if you use 2 instead of 3?
3.Why most lamp use switch on a desk lamp wired in series with the bulb??
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ANSWER:
Golden is correct. A little more detail.1. no, the whole idea of a parallel circuit is that the loads (lights) are not dependent on each other.
2. they get brighter (all other things being equal) because you lower the resistance which increases the current and the power.
3. so you can turn it off and on. Like unplugging the light. that is the only you can wire it. It you put it in parallel, the switch would cause a fire.
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Track Light Led
Technology Insight Report: Light Emitting Diode Or Led Technology In Lighting
Light Emitting Diode or LED Technology in lighting can be traced back to 1927 although it didn’t make an entrance into commercial applications till much later. Having taken a back seat for many years largely owing to its high production cost LED lighting is rapidly gaining ground in the lighting space in more recent times. With the increasing demand for greener, more energy efficient products as well as the environmental strain on energy resources in our times is LED technology the answer to the future of our lighting needs? Where is LED technology headed and does it have the research momentum and industrial backing to take on the light bulb which was perhaps the most life-changing invention of our time?
Energy Star Track Lighting
Save Energy and Money by Changing your Light Bulbs
The light bulb Thomas Edison invented and made famous may be on its way out in the coming years, at least in the Golden State. California State Assemblyman Lloyd Levine recently introduced legislation that would ban the s 00004000 ale of incandescent light bulbs by 2012. This legislation, titled the aHow Many Legislators Does it take to Change a Light Bulb Act,a (say that 5 times fast) touts the benefits of energy-saving light bulbs, such as the increasingly popular compact fluorescent bulb or CFL, and the up-and-coming LED bulb.
The highly inefficient incandescent bulb converts only 5 percent of the energy it receives into light while pouring thousands of tons of carbon dioxide into the earth’s atmosphere, as opposed to the CFL, which has a whopping 10,000 hour life span and uses only 180 kWh over those 10,000 hours. The incandescent bulb, or bulbs, as multiple would be needed, uses 750 kWh over that same 10,000 hour time frame.
Many other states are likely to follow as scorching summers are making rolling blackouts and brownouts a normal occurrence. Wide use of efficient bulbs would drastically reduce the energy drain year round, but would make a huge difference in the summer when air conditioners are running for months on end in some parts of the country.
What you can do is lead the charge starting nowa”why wait until 2012 or however long it takes to get legislation through the hoops of the political process. CFL’s may cost a bit more up front, but can save you around per bulb over the course of a year. Count the number of incandescent bulbs in your home now and then count the money you’ll save. Eco-Lights.com has trumpeted the use of energy efficient bulbs since its inception in 2003 and has one of the largest selections of solar and Energy Star approved lighting fixtures on the web. Do your part and switch to compact fluorescent bulbs today.
Frequently Asked Questions
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QUESTION:
Where does the light come from that illuminates dreams?
I sometimes dream in black & white, and sometimes in colour.
I always thought that apart from geothermal energy (glowing magma and the such-like) all light could be tracked back to stars (usually the Sun)???? But when I’m dreaming I’ve got my eyes closed??? Is it something to do with quanta??Many Thanks,
Jason.-
ANSWER:
ITS YOUR IMAGINATION, YA EDJIT
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QUESTION:
Can someone help me with chemistry?
1. A light-year is the distance light travels in one year, at the rate of 186,000 miles per second. The nearest star to Earth is Proxima Centaur, located 4.2 light-years away.
a. How many miles is it from Earth to Proxima Centauri? Use the conversion factor 365.25 days per year to account for leap years. Be sure to keep track of time units as you figure out how many miles light travels in a year. Don’t forget that Proxima Centauri is 4.2 light-years away. Express your answer in scientific notation, using the correct number of significant figures.
b. Mars is 350,000,000 miles from Earth at its closest approach. How far is that in light-years? Use your answer to part a to determine how many miles are in a light-year, then convert 35,000,000 miles to light-years. How long would it take a radio message to travel from Mars to Earth? Remember that radio waves travel at the speed of light.2.Niels Bohr’s model of the hydrogen atom is different from the classical physical model. What does the Bohr model say about electronic states? What does the Bohr model say about energy changes when electrons change states? What does the classical physical model say about electronic states? What does the classical physical say about energy changes when electrons change states?
3. You are operating a photoelectic-effect experiment. Using a light source with a wavelength of 550nm, you cannot cause an electric current to flow. Why doesn’t electricity flow at this wavelength? What needs to be modified for electricity to flow? Consider energy, light color and wavelength.
4. Flame tests can be used to identify unknown elements. Are the emitted colors different when you burn different elements? Are these spectra unique for each element?
5. Compare the frequencies, wavelengths, and energy of x-rays to those of radio waves.
If anyone can help me on any of these that would be great. Thank you so much!
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ANSWER:
I see you’ve just joined the Answers community.. Welcome. However you seem to have already forgotten the rules you accepted when you joined .. in particular, that you can ask ONE question for ONE lot of your points. Seems fair to me and most people stick to it. You’ll find the community usual just ignore posters who ask lots of questions like this. To be fair I’ve just answered one. Hope that helps.4. Flame tests can be used to identify unknown elements. Are the emitted colors different when you burn different elements? Are these spectra unique for each element?
The colours that should be seen are:
sodium – yellow-orange (typical ‘street lamp’ yellow)
potassium – purple-pink, traditionally referred to as ‘lilac’ (often contaminated with small amounts of sodium)
lithium – crimson red
copper – green/blue
calcium – orange-red (probably the least spectacular)
barium – apple green
strontium – crimsonThe electrons in the metal ions are excited to higher energy levels by the heat. When the electrons fall back to lower energy levels, they emit light of various specific wavelengths (the atomic emission spectrum). Certain bright lines in these spectra cause the characteristic flame colour. Each element has a unique spectra.
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QUESTION:
MORE PROOF…………………………?
Scientists are convinced that our universe began with one enormous explosion of energy and light, which we now call the Big Bang. This was the singular start to everything that exists: the beginning of the universe, the start of space, and even the initial start of time itself.Astrophysicist Robert Jastrow, a self-described agnostic, stated, “The seed of everything that has happened in the Universe was planted in that first instant; every star, every planet and every living creature in the Universe came into being as a result of events that were set in motion in the moment of the cosmic explosion…The Universe flashed into being, and we cannot find out what caused that to happen.”9
Steven Weinberg, a Nobel laureate in Physics, said at the moment of this explosion, “the universe was about a hundred thousands million degrees Centigrade…and the universe was filled with light.”10
The universe has not always existed. It had a start…what caused that? Scientists have no explanation for the sudden explosion of light and matter
The human brain…simultaneously processes an amazing amount of information. Your brain takes in all the colors and objects you see, the temperature around you, the pressure of your feet against the floor, the sounds around you, the dryness of your mouth, even the texture of your keyboard. Your brain holds and processes all your emotions, thoughts and memories. At the same time your brain keeps track of the ongoing functions of your body like your breathing pattern, eyelid movement, hunger and movement of the muscles in your hands.The human brain processes more than a million messages a second.7 Your brain weighs the importance of all this data, filtering out the relatively unimportant. This screening function is what allows you to focus and operate effectively in your world. The brain functions differently than other organs. There is an intelligence to it, the ability to reason, to produce feelings, to dream and plan, to take action, and relate to other people
When it comes to the possibility of God’s existence, the Bible says that there are people who have seen sufficient evidence, but they have suppressed the truth about God.1 On the other hand, for those who want to know God if he is there, he says, “You will seek me and find me; when you seek me with all your heart, I will be found by you.”2 Before you look at the facts surrounding God’s existence, ask yourself, If God does exist, would I want to know him?-
ANSWER:
“sigh”you could have just put the link on here instead of pasting and attempting to look smart!
dude, you have a very weird outlook on how things are. maybe you need to get out of NY and see the world without a bible to warp your mind. go to india or africa and see how life can be for those who your western ‘god’ has seen fit to ignore.and you can paste all you want to, it ain’t clever unless you understand what you are actually pasting . and you sure as sh1t don’t understand!
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QUESTION:
sony vaio z series or macbook pro?
macbook pro —— 00
2.8GHz Intel Core i7
8GB 1066MHz DDR3 SDRAM – 2X4GB
500GB Serial ATA Drive @ 7200 rpm
SuperDrive 8x (DVD±R DL/DVD±RW/CD-RW)
MacBook Pro 17-inch Hi-Resolution Glossy Widescreen Display
Backlit Keyboard (English) & User’s GuideSony—— $ 4700
Dimensions (Approx.) : 12.4″(W) x 1.0-1.3″(H) x 8.3″(D)5
Weight (Approx.) : 3.04 lbs (with standard capacity battery)
Backlit Keyboard : Yes
Camera : Built-in MOTION EYE® camera and microphone with face-tracking technology
Keyboard : QWERTY, 82 keys with 2.0mm stroke and 19.05mm pitch
Action Buttons : VAIO, ASSIST, Performance Select, Windows Arrangement, Wireless on / off
Computer Type : Laptop
Pointing Device : Electro-static touchpad (Multi-Finger)
Security : Biometric Fingerprint Sensor
Type of Use : Ultra-portable
Battery Type : Standard Capacity Lithium-ion Battery
DVD Playback : Up to 3.5 hours7Standard Capacity Battery
Default Brightness : Up to 7 hours7Standard Capacity Battery Up to 10.5 hours7Large Capacity Battery (sold separately)
Maximum Brightness : Up to 6 hours7Standard Capacity Battery Up to 9 hours7Large Capacity Battery (sold separately)
Capacity : 512GB2 (256GBx2)
Interface : Serial ATA
Bluetooth® Technology : Integrated Stereo A2DP (2.1 + EDR) 14
Ethernet Protocol : 10Base-T/100Base-TX/1000Base-T
Ethernet Speed : Fast Ethernet (RJ-45)
Mobile Broadband : Verizon Wireless and Sprint Mobile Broadband Built-In22with Share My Connection™
Wi-Fi : Intel® Centrino® Advanced-N 6200 (802.11a/b/g/n)3
GPS : Yes21
Multimedia Card Reader : One Memory Stick PRO™ (STD / Duo) media slot with MagicGate® functionality One ExpressCard® /34 media slot One Secure Digital (SD memory card) media slot
Sound System : Intel® High Definition Audio
Telephone Support : 1 year toll-free technical assistance available 24/7 at 888-476-6972. For priority support, please call 239-768-76059.
Online and Email Support : Available at http://www.esupport.sony.com/EN/VAIO
Onsite/In-Home Service : 1 year limited warranty with Onsite/In-Home Service15. See actual warranty for details.
International Service : 1 year international service plan. Registration required. See www.sony.com/IRSP for details.
Limited Warranty Term : 1 year limited warranty8. See actual warranty for details.
Limited Warranty Term : 1 year limited warranty8. See actual warranty for details.
Average Boot Time : 60 sec17
Average Resume Time from Suspend : 2 sec17
First Boot Time : 5 min18
Processor : NVIDIA® GeForce® GT 330M GPU with Intel® HD Graphics
Technology : Dynamic Hybrid Graphics System19
Video RAM : 1GB of dedicated video RAM
Cache : 4MB
Speed : 2.80GHz1with Turbo Boost Technology up to 3.47GHz20
Type : Intel® Core™ i7 – 640M
Operating System : Genuine Windows® 7 Ultimate 64-bit12
Sony® Creativity Suite : PMB – VAIO® Edition – Import, organize, edit and publish in one easy-to-use program VAIO® Media Gallery™ software – Bring forgotten favorites to life *Please access VAIO® Help and Support from your PC for a complete list of software applications and trials.
System Maintenance and Support : VAIO Care™ – System diagnostics and maintenance
Anti-Virus Software : Norton Internet Security™ 2010 30-Day Trial Offer13
Supplied Software : Microsoft® Office 2010 Starter11
Back Light Technology : LED
Resolution : 1920 x 1080
Screen Size : 13.1″4
Technology : Full HD
DC-In : 1
HDMI™ Output(s) : 1
Headphone Jack : 1
Internal Microphone : 1
Microphone Input : 1
Port Replicator Connector(s) : 1 (Bottom)
USB Port(s) : 3 (2.0 compliant)
VGA Output(s) : 1
Installed : 8GB (4GBx2)
Type/Speed : DDR3/1066MHz
Maximum : 8GB
ENERGY STAR® : 5.0
EPEAT™ : Gold
ROHS® : Compliant
BD-R DL Read / Write : 2x max
BD-R Read / Write : 2x max
BD-RE DL Read / Write : 2x max
BD-RE Read / Write : 2x max
Blu-ray Disc™ Support : Read / Write (BD-R/-RE/-ROM)23
CD Support : Read / Write (CD/-R/-RW)
DVD Support : Read / Write (DVD±R/±RW/±R DL/-RAM)-
ANSWER:
go with a typewriter
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QUESTION:
More astronomy homework help…?
Hi again, Yahoo! Answers. I’m an English Lit major stuck in an Astronomy class that I’m having trouble with. With 4 weeks left, I’m just struggling to get through the homework and final tests and pass the class, but I am confused about the homework. I’d really appreciate your help so that I can get points for this homework assignment and also take down the answers as notes for studying. Thanks!Question 1
Dust reddens starlight becausea.it reemits the light it absorbs at red wavelengths.
b.it emits mostly in the infrared due to its cold temperature.
c.it is made mostly of hydrogen, which produces a strong Balmer line.
d.it scatters optical and higher-frequency light.Question 2
Dust appears dark in _______ wavelengths and bright in _______ wavelengths.a.optical; ultraviolet
b.infrared; radio
c.radio; ultraviolet
d.optical; infraredQuestion 3
Interstellar clouds area.hydrogen, condensed out of the interstellar medium, like water clouds our atmosphere.
b.regions where hydrogen tends to be denser than the surrounding gas.
c.regions where water condenses out of the interstellar medum.
d.oxygen, condensed out of the interstellar medium, like water clouds in our atmosphere.Question 4
a young protostar is _______ than the Sun even though its surface temperature is ________.a.fainter; hotter
b.bigger; cooler
c.more luminous; cooler
d.smaller; hotterQuestion 5
What happens as a protostar contracts?a.Its density rises.
b.its temperature rises.
c.Its pressure rises.
d.All of the above are true.Question 6
A cloud fragment too small to form a star becomesa.a black hole.
b.a brown dwarf.
c.a protostar.
d.nothing: it simply dissipates.Question 7
The source of energy for a contracting protostar comes froma.gravitational potential energy.
b.kinetic energy.
c.thermonuclear energy.
d.radiation energy.Question 8
A Hayashi track on H-R diagram is a path of approximately constanta.mass.
b.luminosity.
c.temperature.
d.radius.
Question 9
The most common types of stars in our galaxy area.high-mass stars.
b.low-mass stars.
c.an equal mix of high- and low-mass stars.
d.We do not yet know which types of stars are most common in our galaxy.Question 10
A star’s evolutionary “track” in the H-R diagram traces outa.only how the star’s size changes with time.
b.how the star’s luminosity, temperature, and size change with time.
c.only how the star’s luminosity changes with time.
d.only how the star’s spectral type changes with time.-
ANSWER:
1- d. it scatters optical and higher-frequency light.
2- d. optical; infrared
3- b. regions where hydrogen tends to be denser than the surrounding gas
4- b. bigger; cooler
5- d. All of the above are true.
6- b. a brown dwarf.
7- a. gravitational potential energy.
8- a. mass.
9- b. low-mass stars.
10- b. how the star’s luminosity, temperature, and size change with time.
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