Questions tagged [led]

For questions regarding lighting that uses LED (Light Emitting Diode) technology.

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1answer
3k views

MR16 LED turns off after 10 minutes - regular halogen works fine

UPDATE: I checked reviews on the LOWES website - the Utilitech bulbs do this for everyone - they are just a crappy product. *** I have replaced several MR16 halogen bulbs in my kitchen with Utilitech ...
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4answers
1k 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 ...
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1answer
65 views

Lighting a Room with LED Light Strips

I want to light an entire room (~300sqft) using light strips as there is no wiring available for traditional lights. I want to make 3 rectangles on the ceiling ("zones") that I can control ...
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2answers
129 views

How do you achieve this stairway 'chaser' effect with an LED light strip?

Here is a gif showing it in action, once the motion is detected, the strip slowly lights up directionally from bottom to top, how is this achieved? I can't seem to find how this is done: Looping GIF ...
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1answer
69 views

Can I connect two LED strip controllers for three-way control?

I am using led strip on 12 treads of a staircase. The lighting is to be controlled by a 4 zone rgbw dmx controller. Can I connect 2 controllers so I can have 3-way operation ie. on controller at the ...
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4answers
1k views

LED bulbs in my old house are dying prematurely

I installed about 20 LED bulbs in my house when I moved in two years ago. Since then at leave 5 of them have died. None of the bulbs are on dimmer switches. However, my house is more than 100 years ...
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2answers
10k views

Can LED strips serve as the main light of a room?

I would like to know if led strips can serve as the main light of a living room (4.5mx3.5m) and if so, what kind of strips and where to put it in the room (along the walls, along the edges of the ...
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4answers
184 views

How to select the most appropriate indoor LED bulb color

I want to buy LED bulbs to install in all the rooms and I don't know What are the criteria to select the proper ones (for eye and physiologically good). How to distribute them in every room ( I mean ...
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1answer
36 views

Voltage based switch. Ceiling fan on dimmable lights

Excuse my ignorance in the subject, below i will try to explain what i have and what i am trying to achieve. In my living room I have about 15 led dimmable recessed lights on a dimmable switch. From ...
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1answer
43 views

Outdoor LED lights runnng dim/flickering

These lights are Kichler hardscape step lights and mounted and installed professionally through a stone wall. They are wired to a 300 watt multitap transformer and the other two lines work fine. The ...
2
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1answer
30 views

One circuit of lights comes on dim when another is switched on

We have three separate circuits of LED lights in close proximity to each other- one in master bath, one in master bedroom, and one in master closet. All are on dimmers. When any one of these three ...
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2answers
56 views

Re-wiring plugged shop lights to LED panels

DISCLAIMER: I am NOT even close to an electrician, but I like to think I am fairly intelligent and can follow directions well... I am in the process of remodeling my basement. I have a suspended/drop ...
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2answers
65 views

Is my dimmable LED tape compatible with any 12V/2A driver?

I bought a fairly cheap LED tape kit that comes with a driver and dimmer. The dimmer is a small inline module that sits between the driver and the LED tape. The driver has 12V/2A output and is ...
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0answers
25 views

Led 57884-4 one light socket dim's when the light is on

I have purchased led 57884-4.. It worked great for 3 months.. But since one week ago one of the leds doesn't 'light' up as it should. I've tried changing the 'bulbs' but the problem persists on that ...
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0answers
37 views

LED lamp is flicking. How to troubleshot?

I have this led floor lamp and the upright light/bulb has started to flicker yesterday. The lamp has been already a little bit problematic because recently the LED driver broke and I have to order ...
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3answers
373 views

Air compressor makes LEDs flicker

About 2 years ago I converted an automotive shop from florescent to LED T8(120 volt). They worked great until we changed the compressor today to a new more efficient and more powerful one (both 240 ...
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1answer
50 views

240Vac LED Off-Peak power flicker

Aussie from NSW here - We recently changed our lounge room light fixture to a modern 6 bulb setup, connected it up to see the nightsun that it was at 640lm per bulb. Quickly installed a dimmer only ...
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1answer
48 views

LED lamps and fluoro replacements

I have recently purchased LED lamps and magnet attached circular units to replace old fluoresent tube units. The individual lamps in the format of a standard 240v lightbulb are no ...
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0answers
46 views

LED lights won't come on at the same time

I renovated a kitchen and put in 4 recessed LED lights. They are daisy-chained, 3-way, with an LED compatible dimmer (just one, other switch is just a 3-way switch) When I turn on the lights (from ...
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1answer
31 views

Mixed Recessed LED Lights Not Working

I purchased a home that has recessed lighting throughout. They are the LED lights that clip into a standard light bulb screw-in socket. They all point straight down and I wanted to purchase some that ...
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3answers
105 views

LED T8 tube replacement

I had replaced the two T8 Philips fluorescent tubes with two Utilitech YGA05A32-T8-18W-840-T LED tubes quite some time back. I did not change any of the ballast wiring and all worked fine. A few ...
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4answers
39k 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 ...
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6answers
4k views

Why do LED Lights Flicker on Low Dimmer Setting

I just wired up the following schematic and both sets of LED recessed lights will flicker when dimmed below full power. It doesn't matter what the other dimmer is set to (full power, low power, off). ...
2
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2answers
5k views

LED strips quit working

I replaced all of my under-counter fluorescent light strips with Connecting LED strips two years ago. I thought they were supposed to last forever? Last week, one strip went out. A week later two ...
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1answer
96 views

Light bulb suddenly only turns on for a moment, tried multiple bulbs

So when it happened, I tried to turn on the light (that worked fine before) and it lit up only to go off shortly after. subsequent tries were met with failure. So I changed the bulb for a new one. No ...
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1answer
41 views

What width of wire for 24V DC LED driver?

I bought a 24V/25W LED driver from a local shop and the sales assistant sold me a short length of 20AWG control wire to go with it. In order to buy more wire (elsewhere) I looked up the UK (mm2) ...
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1answer
64 views

Repurposing outdoor LED security floodlights for an indoor sconce

I am trying to create a very bright wall sconce using two LED security floodlights. I have disassembled the floodlights so I could remove them from the very bulky, heavy duty outdoor metal packaging. ...
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2answers
209 views

Does removing an LED bulbs from fixture decrease energy usage?

Noob question alert. Electrics have always been my weakness. If you have a 6 bulb ceiling light, with 6 LED bulbs each with 5w, and you remove 3 of them, does this half the energy usage when the ...
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1answer
2k views

Convert light socket to plug socket for LED lighting strip

I have a european (Netherlands) light socket in my house that I would like to convert to a plug socket to accommodate an LED lighting strip. My builder says it won't work, but he's Polish, I'm English ...
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2answers
86 views

How to on this retrofit led recessed light

That's the inside of my can on my recessed lighting but the new retrofit led plug doesn't fit that. What do I have to do in order to retrofit a new led light in that old fixture to avoid me going into ...
2
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1answer
67 views

Not to be used in totally enclosed or recessed luminaires

My question centers or the word "OR". Should this be thought of A) totally enclosed luminaires OR totally enclosed recessed luminaires B) totally enclosed luminaires OR recessed luminaires. ...
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0answers
32 views

How prevent the first bulb in a series of two LED ceiling bulbs from going out for 30 seconds once every ~5 minutes

Question How do I prevent the first bulb in a series of two LED ceiling bulbs from going out for ~30 seconds once every ~5 minutes. Background Prior to a couple years ago, I had two working ...
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3answers
606 views

Wiring toggle switch (on/off/on) to PIR motion sensor and led strip

I would like to set this up so the first on position goes through the motion sensor and the second on position would be for just turning the led strip light on and bypass the motion sensor. When I set ...
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2answers
47 views

Dimming Constant Current LED driver

We have a "Tsong LED Panel": Model: SRPL60X120-60WH Type: 4014 - 4000K Input DC27-42V/1350mA - 60W With the LED driver: Model: SR60-01N-042V1350 Input Voltage: 200-240VAC 50/60Hz Input Current: ...
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2answers
98 views

Why Aren't These LED Bulbs Lighting?

I have a dimmable floor light with 6 G4 bulbs. I ordered a bunch of dimmable LED bulbs and now that they've arrived after weeks, they don't light up at all. If I take one bulb off and place a halogen ...
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1answer
4k views

Blinking/flashing LED porch light

I have a pair of LED porch lights. One of them has started to flash/flicker. Do I need to replace it? It is not a bulb; it is built in. It is extremely cold out. Could that be a factor?
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2answers
83 views

Fix blinking LEDs with a motion sensor (when off)

I have bought a new motion sensor for my corridor LEDs. The lights turn on fine with it, however, when the sensor is set to OFF, the lights blink indefinitely (a few times per second) and never ...
1
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1answer
80 views

Connect Two sets of 5 meter RGB Lights

I bought two of this RGB led Strips of 5 meters and would like to connect them together. Is is possible to do this with the power supply i have or would i need something stronger or maybe an amplifier?...
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1answer
388 views

Does this picture look like a burnt out LED lighting or is something wrong with the fixture itself?

Does this picture look like a burnt out LED lighting or is something wrong with the fixture itself? The apartment was built a year and a half ago with these types of fixtures put in. Is this just the ...
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1answer
279 views

3 way switch to 4 lights rewiring to 15 LEDs

Have a basement with 4 beams that had 2 lights in bay 2 and 2 lights in bay 4. Dropping ceiling and want 3 LED lights in each bay. Can I run 3 new 12/2 wires to bays 1,3,5 which will be spliced to the ...
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3answers
2k views

Indicator Lamp (LED) on 3-Way Switch

So I bought this home a few months ago and I removed all the outlets and switches to replace room by room. In the breakfast room just inside from the garage, there was a switch plate with a small ...
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2answers
4k views

Can you power LED strips from both ends?

I want to get 2 of these 500W power supplies I have several 5 metre reels of these 5050 LED strips (60 LED/m) Calculations show 1A per metre = 12 watt per metre so about 60 watts every reel. I was ...
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1answer
31 views

Dimmable LED lights on a dimmer switch, they won't come on at all anymore. Do they still work?

Apologies for the wall of text in advance. I bought three 40W Energizer dimmable LED lightbulbs for a dimmer switch at home. Once I screwed them in, I noticed that when I turned on the switch, there ...
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3answers
34 views

LED bulb replacement in Dusk-Dawn Outdoor 175W light

My old metal halide bulb finally died after 30 yrs use. Considering switch to LED corn bulb. However, the seller website states "Connects directly into E39 Mogul Bases. Just screw in. Please note that ...
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1answer
2k views

What wire to use to extend omlopp ikea lights

I have some omlopp from Ikea drawer lights and the correct transformers, but unfortunately the cable on the lights is pretty short and needs extending for quite a few. I'm happy enough to break into ...
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2answers
133k views

Why does an LED light turn on and off irregularly while the switch is in the on position?

We have had a LED light in the family room for several months now. In the past week it has started to act funny. We turn on the LED light and after a while it turns off and then goes back on and then ...
2
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1answer
103 views

Why does an LED in a Can Light go out after Several Minutes?

I looked at this question which seemed to be the closest to resemble my situation, but it's just not a close enough case. I have a bunch of ceiling lights that are MR16 20W Halogens. I've replaced ...
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1answer
47 views

4' flush-mount LED light won't dim

I have purchased two identical 4' flush mount LED lights and two identical dimmer switches. The first set I installed in the master bathroom works perfectly. The dimmer switch goes from very low ...
1
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2answers
292 views

Are these LED panels suitable for lighting above dining area?

I want to light a dining area that is ~12'x 18', with exposed wood ceiling, supported by beams that were created with two 2"x 10" framing lumber, with a 1"x 4" bottom cap. Wiring for the current ...
0
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1answer
71 views

Recessed LED lights need to be turned on twice to work

I recently installed recessed LED lights in by basement. On two of the three runs I have an issue that when I first turn on the lights some of the lights only produce a low dim, and don't react the ...

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