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2
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1answer
193 views

CFL vs LED bulbs

I would like to know the advantages and disadvantages of CFL and LED bulbs. Is LED bulbs makes eye strain?
2
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1answer
784 views

Why won't a 13W LED work in a 75W max light fixture?

I have a wall fixture in my Brooklyn apartment's bathroom that is my only source of light. A sticker on the fixture says that it is Max 75W. The other day, the 14W / 60W equivalent CFL that was in it ...
2
votes
2answers
31 views

Can I replace tungsten-halogen lamps with an LED version?

I've a lamp which uses 12 bulbs of this kind, and I've very little knowledge about this kind of thing, so despite it seems feasible, I don't know what information I should look for, and what kind of ...
2
votes
1answer
74 views

How do those glowing LED faucet aerators power themselves?

Google LED faucet aerator and you'll see dozens of different color-changing faucet aerators (and showers), most of which are powered just from the stream of water. How do they generate the necessary ...
2
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2answers
863 views

Practical limits of how many LEDs can you use to replace halogen 12V?

I'm gradually replacing halogen lights at home with LEDs. We have a couple of 12V rails with a 5x35W rating when using halogens. When using the same transformer with LED's, can I use the theoretical ...
2
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3answers
10k views

How can I tell what dimmer switch to use with LED lights?

I replaced the halogen GU10 bulbs in my kitchen with LED bulbs... I'm really pleased with the results but as the bulbs I bought are dimmable, how do I know what dimmer switch I can use? I did try ...
2
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2answers
72 views

Flickering lights

I am in the process of updating my guest bedroom and my first goal was to install LED recessed lights along with a ceiling fan(no light kit). The fan is powered by its own dimmer switch and the lights ...
2
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1answer
82 views

One specific light fixture seems to be killing my LED bulbs

I have all LED bulbs in my house, the nice CREE models that look like this. They've all been great, except for the ones I put in my bathroom's four-bulb fixture. One by one, all the bulbs in this ...
2
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1answer
127 views

Why would an LED stop flickering when connected in series with an incandescent?

I recently bought some LED replacements for G4 base under cabinet light which has 3 sockets. When I put the first bulb in I noticed it was very dim with a bad flicker. Adding the next two made the ...
2
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1answer
723 views

Can I put dimmable LED bulbs in a ceiling fan fixture and wire it to a dimmer switch marked LED compatible?

Would there be any problems with putting dimmable LED bulbs into a ceiling fan fixture that holds three bulbs and wiring it to a dimmer switch marked LED compatible? The fan itself will be on just the ...
2
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1answer
471 views

Why are my LED bulbs flashing?

I recently replaced all eight bulbs on my chandeleir with dimmable led light bulbs. They work fine when on, but at approximately half power (dimmer turned half way through), the bulbs start flashing ...
2
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1answer
108 views

Using LED light bulbs in a dimmer

I have this light fixture: that used halogen light bulbs (philips ecovantage, 500 lumens, 120v, PAR FLOOD25) - ll failed during the same week but one: I wanted to replace them with those LED ...
2
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1answer
453 views

What connector should I use to connect LED light / driver to mains?

I've just got some LED spots to go in a small cloakroom. What connector should I use to connect them to the mains? The mains wires to the driver are tiny (about 20AWG). Is there are recommended ...
2
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3answers
2k views

How to install LED strip where before I had a fluorescent tube?

I want to install a LED strip where once there was a fluorescent tube. I like to think myself as google competent but this time I could not find a satisfactory answer. Right now, in my ceilling I ...
2
votes
1answer
950 views

Why doesn't this LED strip work, even though the power supply seams appropriate?

I recently bought a 3528 SMD Flexible LED Strip, 300 LED for 5 M. The Power Supply I have output 12V and 3A. From what I found online, this seams okay, but it doesn't work. I managed to light them ...
2
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1answer
340 views

LED undercabinet lights but 240v inputs

I have replaced a run of halogen under cabinet lights with 1w lights running of an LED driver. This string of LEDs goes under a run of wall cabinets over a worksurface. I have two smaller ...
2
votes
1answer
124 views

When I turn the light on/off on one circuit, it makes the light “blink” off/on on another circuit

I apologize for the long post, but I wanted to provide as much info as possible. Recently I started a DIY home electrical project to replace a lot of light fixtures, the light switches, and the ...
2
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3answers
241 views

why is my led bulb running dim?

I have five LED bulbs outdoors near the Twin Cities in Minnesota, all of the same brand (Feit 800 lumens, if that matters), which have been installed somewhere around mid-summer 2013. We don't have ...
2
votes
1answer
437 views

What size power supply do I need to connect two 5 meter LED strips? [duplicate]

I want to buy 2 of these 5 meter LED strips to make a 10 meter run. What power supply do I need to have to avoid voltage drop? what controller do I need? How do I connect those 2 LED strips?
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4answers
2k views

12V DC LED Dimmer

I would like to fit dimmable LED lights in my new bathroom Most solutions seem to involve a dimmer switch that chops a high-voltage AC supply, and a driver per light (often integrated into the bulb) ...
2
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3answers
3k views

Problem with GU10 LED bulbs tripping out power

I have had some re-plastering and re-decorating work done in my kitchen. I had a new light fixture installed which takes 6 GU10 type bulbs. When the light fixture was first installed I placed 6 LED ...
1
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2answers
5k views

Can I use dimmable leds without a dimmer?

I recently bought "dimmable LED lights" without knowing exactly what this means. I did some research, and now I get it. A dimmer is required to regulate the intensity of the lights, for which I don't ...
1
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2answers
174 views

Is it possible to use a dimmable LED GU10 bulb on a non-dimmable circuit?

Is it possible to use a dimmable LED GU10 bulb on a non-dimmable circuit? I know you cannot use the opposite.
1
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3answers
90 views

Can I Connect RGBW LED Strips With LAN Cable?

I'm in the process of remodeling my kitchen. I plan to install RGBW led strips on the top of the upper cabinets, below upper cabinets and below ground cabinets. I have to close off any wall holes and ...
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2answers
73 views

Do LED lamps need a bulb?

I bought an LED light bulb on eBay, which unfortunately is too big for the lamp i want to put it in. If I would remove the glass bulb however, it would fit. My question is, does the lamp actually need ...
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1answer
296 views

Can I power seven 54W LED light strips from a 400W supply?

I have ws2812b 60 LED/meter and a 400W/80A power supply. Is it fair to say that my power supply is 'capable of supplying' up to 400W of power and not 'pushing' all 400W of power? My understanding is ...
1
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1answer
149 views

Change recessed CFL lights to LED

I have the CFL recessed lights in my kitchen but i want to change them to LED, some one at home depot told me that i will need to change the can. Can someone help or guide me to a video or ...
1
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1answer
8k views

What kind of led strip should I use?

i looking forward to install LED Strips (Cool White) in my new home. But I am not sure what kind of LED Strips should I use. Till now I have read that I can use 5050 or 3528. In the photo the ...
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1answer
171 views

Did four LED light bulbs break my light fixture?

I have a bathroom light fixture with 4 light bulbs. Until yesterday, those light bulbs were the classic incandescent light bulbs from GE. That light fixture has been working for the last 7 years with ...
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2answers
1k views

How can I connect my LED strip lights?

I bought this white-only LED strip lights off amazon, and it has a DC jack. However, when I search on the internet, there seems to also be 4-wire cable and 2-wire cable. I'm asking this because I ...
1
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3answers
17k views

How can I prevent these LEDs from blinking when turned off?

In a block of units we installed 240v EARTHED downlights. I believe the neutral maybe 2-3volts above earth causing the lights to flash when turned off. The fittings are provided with earth connection ...
1
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4answers
738 views

How can I get High-CRI lighting for a small room?

I plan to replace a CFL lighting fixture in a small room (10' x 15'), due to its being too dim and giving less-than-perfect light. I'd like to install something that would give me 3500K light with ...
1
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2answers
56 views

Is it possible to recognize a flickering LED from its technical data?

LEDs often flicker and I hate it. You rarely see it directly, but you can recognize it when you do fast movements with your hand or so, while the LED is the only light source. The movement then does ...
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1answer
367 views

Traditional Recessed Lights or the New “clip” LED Panels?

I'm finishing my basement (exposed ceiling, will be putting in roxul safensound) and I have a dilemma. Home Depot just released these new 4" puck/panel lights with integrated LED driver. I'm ...
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1answer
93 views

3-way led bulb problem

I have tried 2 3-way LED bulbs by GE. The settings are 50w, 100w and 150w. They have the same base configuration as incandescent 3-way bulbs (extra ring around center contact). When I turn it to the ...
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2answers
64 views

Switching to LEDs: 12v LEDs on existing transformer or remove transformer and use 240v LEDs - Which is better?

I have +/- 50 10w halogen lights running on transformers at 12v. I want to switch these to LEDs. Some quotes are coming in with keeping the 12v transformers and getting 12v LEDs and some are on ...
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2answers
86 views

Is it possible to use LED lamps in ceiling r80 eyeball fittings

I have a pair of eyeball style R80 100w fittings in my kitchen. These are horribly inefficient, so I recently tried replacing one of the bulbs with an 18w LED lamp (a LEDLite branded one from TLC ...
1
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1answer
85 views

Lutron Maestro CL Extreme Delay

I've had nothing but success with using Maestro dimmers on both LED and incandescent lighting for years, but recently picked up a new dimmer (MACL-153M-WH) and a pair of G7 Elko LEDs (30W total) and ...
1
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1answer
2k views

Why are my LED lights flashing when powered from an inverter?

I am running some 10 watt LED floodlights off a 12 volt battery and 230 volt inverter. The 10 watt LED floodlights are flashing on and off. I am also running 20 watt floodlights and they do not ...
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1answer
6k views

Can dimmable (triac) LED bulbs be used on a motion sensor switch without neutral wire?

I bought a bunch of these motion sensor switches. I also want to use these dimmable LED bulbs. The motion sensors do not have a neutral wire connector. My outlets only have a live wire and it would ...
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3answers
17k views

Why do my LED lights flash on cold start?

Whenever I flip on my dimmer switch, all four dimmable LED lamps flash on in unison, blink off, and then come on at the selected dim level. This happens even with the dimmer slider maxed out, so it's ...
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2answers
53 views

how can I convert my AC under kitchen cabinet lights to LED lights?

Under my kitchen cabinets I currently have 120 volt AC florescent lighting. I want to replace these lights with brighter LED strip lighting, which typically is run using 24v DC current. The lights ...
1
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1answer
64 views

One Big Power Supply vs Multiple Smaller Ones

I'm remodeling my kitchen and decided to get LED strips. I already know the necessary power for my LEDs, but I want to decide whether to power them all from one source or multiple sources. These are ...
1
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1answer
64 views

New LED flood lights give off quick flash when turned off

I just purchased 6 new LED Flood Lights for my kitchen, my kitchen has two light switches that turn the lights off and on and neither of them are dimmers so I purchased non dimmable LED lights. One ...
1
vote
1answer
73 views

Will an LED light bulb illuminate down on this uplight lamp?

I have this Ikea Floor Uplight lamp and I want to replace the current CFL light bulb with an LED light bulb. I'm thinking of using a Philips 433235 60 Watt Equivalent SlimStyle A19 LED Light Bulb ...
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1answer
137 views

How can I make a bluish “white” LED less blue?

I recently bought this white LED reading lamp. I like it a lot, but the "white" light produced is significantly blue; I'll guess its color temperature is about 5000K. I've noticed that, when this is ...
1
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1answer
106 views

LED strip lighting joining cuts?

I bought some LED strip lighting and it just arrived: http://www.amazon.co.uk/gp/product/B00LXZKPWY/ref=ask_ql_qh_dp_hza It's 5m but I only need about a metre so need to cut it to size. There are cut ...
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1answer
187 views

My LED strip lights just went boom, how to diagnose?

I live in a rented house (in singapore), where the master bedroom alone is fitted with a pair of LED strip lights, and about a month back, when we tried to turn it on, it went a (soft) boom, and hasnt ...
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1answer
47 views

How should I power 6 30W (30-36v 1.05A) LEDs from the mains?

Was reading about transformers, so basically, which transformer will be optimum, could i get a 36-30v one and not worry about resistors?
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2answers
373 views

Delay when powering LED light strip

I made a "shop lamp" out of an LED strip and power supply. When I plug it in there is a 1-2 second delay before the lights are powered up. Do some transformers have a shorter delay than others?