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18

Most LED bulbs on the market are in fact dimmable, IF you use a CFL/LED dimmer. Your "standard" dial or track dimmer is either just a big potentiometer or Rheostat that reduces voltage through resistance, or a slightly more efficient design called a TRIAC dimmer, which uses a specialized transistor design to attenuate the line voltage by turning the line on ...


16

Using these RGB as a base example Basic Electronics Crash Course Volts * Amps = Watts Watts / Volt = Amps General Information These strips indeed usually come in lengths of 5 meters but you find suppliers that will give you 10/15/20 metres options also. Most only provide 5 meters because of the power they need to power up properly. So they try and sell ...


15

Some light switches run a small amount of current through the bulbs even when off, usually to power small devices at the switch like a timer, motion sensor, or night light. Do your switches have either of those features, or something else like that? The way those devices work is instead of having a hot/neutral pair powering the switch, they just sit inline ...


12

Many issues here. Let me go over in as much detail as possible: Background: I love energy efficiency, and when doing my kitchen researched this LED Vs CFL vs incandescent lights extensively. Notice there are also permit (legal) implications, depending on which state you leave (CA has Title 24 for example). Connector types: There are several connectors that ...


11

Unless you have a 3-way LED bulb (and a quick search indicates that they don't exist yet), it will light, but at the brightest light level. A three-way incandescent light has two filaments: dim and medium. Each filament has a separate contact on the bulb's base. The brightest light level is provided by energizing both simultaneously. When energized, each ...


11

You've probably connected one of the 2 power wires to the incorrect traveler terminal on the switch. This switch can be used as both a standard two-way switch as well as a three-way switch. (A three-way switch is used when there are 2 switches controlling the same device.) In standard two-way arrangement, one of the power wires should be attached to the ...


9

I was not able to find any sections in NEC that prohibit switches from being installed in closets, so until somebody can point to a specific section I'd say it's not a problem. There may be adaptations to the code in your local area, so you'll have to check with the local Electrical Inspector to be absolutely sure. The NEC does, however, have a section on ...


8

The short answer is to check with the bulb manufacturer. Ambient temperature and use case requirements may also be mentioned on the box/packaging. The long answer is that it depends (as always eh?). From what I could find online, CFLs and incandescent bulbs are actually MORE sensitive to LOW temperatures than LEDs. So in your specific use case, I would ...


8

PAR = Parabolic Aluminized Reflector. The number is the diameter of the bulb times 8, so divide by 8 to get its diameter. Thus, a PAR30 is a 3.75" diameter bulb. Our last house had PAR30 floods in track lighting in the living room (a style that was all the rage when the house was built in the 1980s). You can use them indoors. The quality of light you get ...


8

I called Philips about this issue. They said that it indicates that the bulb is broken and needs to be replaced. Some LED bulbs have enough electronics in them that they are able to have diagnostic circuits and to report errors in this manner.


7

Led lamp color is measured in kelvins. Warm White is 2700 kelvins or 27K. This is 'supposed' to be equal to incandescent table lamps. Next is 30k which supposed to be equal to halogen. Next is cool white which in LED's can range from 39k to 45k. The next is 50k and then 65k. The higher the number the bluer the white is. It sounds like you want 27k. ...


7

You won't be able to shock yourself with 12v, but you can shock yourself with whatever power supply you find that'll do 5A at 12v. Assuming you'll only use one strip at 6a just grab a laptop power supply (I'd recommend this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16812203037) - that way you really don't need to worry about whatever ...


7

Due to the lack of adequate answers, I decided to research the differences myself and provide an answer to the benefit of the community. PAR Type Lamps From a build quality and light control standpoint, PAR type lamps are generally considered superior. The explicit parabolic nature of the reflector means light is more precisely reflected directly out of ...


7

The two differences are Cost It can be dimmed with a standard dimmer A standard dimmer reduces the RMS voltage going to a light to dim it; this may be done by a simple resistor or by chopping of the top of the waveform. So a dimmable LED lamp must be able to: Cope with a big range of input voltage including part formed sine waves, which isn't easy ...


6

While I cannot find any code limiting a light switch in a closet, I know that on the other side of the tracks they either install door-jam switches or motion detectors. These closets are bigger than my bedroom and sometimes have 12 downlights in them. Clearance of the light fixture is in the code book. While this is from Alaska, and quotes NEC code from ...


6

By creating a project box to store the connections you will be fine. The project box will need adequate heat dispersion capabilities because the drivers for LED's are what gives off the most heat. It is imposible for the lights to catch on fire since they give off such a low level of heat that it is unnoticeable.


6

The white "screws", are knockout plugs. A knockout is simply a hole where conduit, cable, wire, or a device can attach/enter the box. A knockout plug, is used to fill unused knockouts. Here is a similar box cover with the knockouts unplugged. This allows you to attach devices, like lamp holders and motion sensors. Any extra holes would be filled with ...


6

Say your electrical bill is $100 a month. Now say you have a refrigerator, a computer, a window fan and your light bulbs in your house as your only electrical devices. Everything but your light bulbs are on 24/7. Fridge: 725W *NOTE MOST FRIDGES DON'T ACTUALLY RUN 24/7 THIS IS JUST FOR EXAMPLE PURPOSES Computer : 125W Fan: 150W Lights (on 8 hours a day, ...


6

No, there won't be any problem. I've been using four "dimmable" BR30 LED floodlights in my recessed kitchen cans for some time now, and I don't have a dimmer. They just start at full brightness and stay there. You don't need to use these with a dimmer if you don't want to. No performance or longevity problems.


6

For a multi-bulb fixture the LED units do not want to be in the area where high heat is generated as would be the case with incandescent or especially with halogen bulbs. CFLs have their own special considerations if they are used in situations with special types of lamp dimmers. Such special dimmers may not be compatible with LED lighting modules. ...


5

Not all LED's are dimmable. The box should say if they are dimmable. Usually if they are dimmable, the instructions might say something like dimmable with standard dimmers. If they are dimmable and you use a regular dimmer they will dim but a standard dimmer will not give you 100% dimming and might go bright to off in half a turn or slide. Dimmers for ...


5

Give it about a month and it will be out. Our company just had a meeting with our Lutron representative and it should be out real soon. He did not give a date but I think they were waiting for Lightfair to make it official. EDIT I talked with the factory rep today and he said orders (on distributors level) are being accepted now and the C•L should be ...


5

3 Way LED bulbs finally do exist now: http://store.earthled.com/products/switch-switch3-way-led-light-bulb


5

Cove or crown molding that is below (free from) the ceiling by 2-4 Inches will give a subdued look. I would place the strip on the wall just below the aperture of the molding (that slit exposed by lowering the molding). Some installations I've seen use a separate wall trim that angles the light strip up..IE attach a wooden strip behind and below the crown, ...


5

All lamps have a size designation which is stated in eights of an inch (1/8"). That particular lamp will most likely not fit in your fixture if it is designed to take a standard A-lamp. That is an R30 size lamp which is 3-3/4" wide. An R20 style lamp (2-1/2" wide) would be more in line size wise with an A-lamp, which is actually an A-19.


4

I am into club lighting and intelligent lighting in general and have done a few installs now which use led strips as the main component. While researching all of the options available to power the strips I discovered the perfect solution if you are using multiple strips...buy a CCTV power supply box. You can find them relatively cheap on Ebay. They come with ...


4

You could try something like a Philips SpotOn. LED light, batteries-operated, motion-sensor-activated. Ideal for small, dark closets and cabinets.


4

If the light is mounted inside of a reflective can you can try to sand or paint the inside of the can to reduce the reflected light.


4

Everyone is saying, one way or another, that residential lighting is not a significant part of your electric bill. More efficient bulbs will eventually save you money, but depending on usage patterns and energy costs, this can take many years. If you want to see significant change in your electric bill, you need to address the major consumers of power. The ...


4

No, you should not have to replace both of the existing switches on each circuit. You won't be able to dim from both ends, of course. You just need a "3-Way LED Dimmer" and follow the appropriate wiring. Replace one of the switches (on each set of lights that have two switches) with the dimmer - the other switch will turn them on or off, at wherever the ...



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