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Questions tagged [led]

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

0
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1answer
55 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 ...
0
votes
1answer
53 views

LED Lighting On Staircase

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 2-way operation ie. on controller at the ...
1
vote
1answer
46 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. ...
0
votes
1answer
27 views

Is it possible to drive led strips using a halogen driver?

I have a 12v halogen setup in my kitchen which I'm looking to replace with 12v led strips. I have everything working and the light strips work, until I unplug the halogen lamps at which point the leds ...
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0answers
25 views

Are there any dimmable 3 way LED bulbs? [closed]

There are dimmable 3 way LED bulbs, and 3 way LED bulbs, but are there any dimmable 3 way LED bulbs?
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votes
2answers
51 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 ...
0
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1answer
26 views

LED's emitting high pitched noise

I have some LED lights hooked up to a trophy cabinet and for some reason it's emitting a fairly loud high pitched noise, does anyone know what this could be?
12
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6answers
49k views

What should I do to increase the dimming range of LED bulbs?

We started doing most of our homes in LED last year. I am a big dimmer fan and would pretty much put a dimmer on any light switch. One thing that I haven't gotten down is the dimming range of the ...
3
votes
1answer
379 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 ...
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2answers
78 views

Looking to replace light switches - 2x blue, 2x black wires

I'm looking to replace a light switch. Upon opening up the switch, I'm greeted with this: I would like to replace with this: For context, this is a commercial in-conduit wiring. I want to replace my ...
1
vote
3answers
421 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 ...
1
vote
2answers
59 views

Is untreated aluminium suitable as an LED heat sink?

I'd like to have a 5m LED strip lighting directed upwards from around 1m height (would be behind a desk and other furniture). My idea was a simple U shaped aluminium profile (so it can be screwed to ...
1
vote
1answer
27 views

Can I add copper wire led lights to existing 12V Landscape Light Transformer

I have an existing 12V low voltage landscape lights set on a transformer. I have a 66ft copper wire LEDs that came with a 5V adaptor. Does this have to be plugged in separately; or can i connect it ...
1
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5answers
175 views

Plastic-on-plastic lubricant that wont leave a residue?

I am working on an outdoor LED lighting project where I'm making my own rope lights to hold up to the elements. I am using waterproof LED strips which are surrounded in a plastic "jelly-like" material ...
1
vote
1answer
54 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?...
1
vote
1answer
42 views

Color adjusting LED ceiling light intermittent issues

I recently installed CE color changing (5 temperature settings) LED all-in-one fixtures in my bedrooms and have been having an odd issue. I wired four fixtures with 12/2 Romex in parallel out of a ...
0
votes
1answer
2k 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 ...
0
votes
3answers
934 views

How to connect LED tape strips in separate locations to one power source?

We're looking into running LED Tape Lights under the wall cabinets in our kitchen. We have three sections that would get the lights and we need them all powered by a single switch. There is a switch ...
1
vote
1answer
37 views

How do you connect a long string of LED strips to power at both ends when including a controller?

I'm looking to use 24v LEDs (https://smile.amazon.com/dp/B01LYNJTBN/?coliid=I359TOA9WZGE2V&colid=3HRP4V1TLBJ6P&psc=0&ref_=lv_ov_lig_dp_it) along my fence to help light my pool area. I ...
0
votes
1answer
100 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 ...
2
votes
2answers
100 views

Single pole switch with lighting “zones”?

Somewhat of a challenge... I'm going from a single light to recessed lighting in my studio condo. There is a single pole switch that this single light is currently connected to. I'm going to install ...
0
votes
3answers
240 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 ...
0
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3answers
1k 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 ...
2
votes
2answers
844 views

LED Light Glowing when off

I have been searching the internet and StackExchange for a couple of weeks now and have not found anything that fixed the issue. I recently added a room in my basement, all new wireing, lights, ...
3
votes
2answers
103 views

Several LEDs and LED bulbs in my house are failing at the same time and way before their estimated lifespan

I've never had this happen to me and, now, in a span of 1 month, it's already happened 4 times... The following 3 LED bulbs and 1 LED strip have become unusable: An Ikea Ledare 600lm spot LED buld (...
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1answer
36 views

How can I tell if a dimmer switch is LED compatible?

I have recently put some smart LED bulbs into my ceiling fan (Lifx if the brand matters) and there is a bad humming noise. Previously there was some humming in at least one of the LED bulbs (they ...
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2answers
63 views

How to know if I can use LED ceiling light bulbs?

I'm renting a flat and need to replace some light bulbs. The bulbs I need are 12V MR16/GU5.3 bulbs. How can I tell if I can use LED bulbs as opposed to the halogen ones that are there currently? If ...
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votes
2answers
47 views

How to wire several 12V DC LEDs in serial

I want to connect about 9 LEDs (12V DC) using a simple wiring. For that I prefer serial wiring. But when I connect the LEDs in serial they don't working. When I connect in parallel, they are working. ...
1
vote
1answer
39 views

LED Flat panel wiring — Type NM/Romex or Lamp Cord

I purchased several LED flat panel fixtures that came without wiring instructions. I’m using suspension cable kits to hang the lamps from an open basement ceiling with fiberglass insulation and TJI-...
0
votes
1answer
1k 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 ...
2
votes
2answers
3k 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 ...
1
vote
3answers
2k views

Why do my LED shop lights flicker when my compressor turns on?

I converted my shop to led from fluorescent.These are direct wire no ballast. Ran all new wires in conduit. The compressor is a 5hp single phase on a 60 amp breaker with 125amp main. I replaced ...
2
votes
3answers
58 views

Dimming multiple led light bulbs (parallel or in series)

I'd like to install 5 dimmable led bulbs. I'm trying to find how to connect them. But I can't get a clear answer. I can get information of the benefits of wiring leds in series/parallel but none of ...
1
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0answers
34 views

How to wire an entire room / kitchen with LED light strips?

As the question suggests, I'm looking into adding LED light strips throughout the kitchen (over cabinet, under cabinet, and kick -- I think under the countertop would be neat, but harder to hide). ...
1
vote
2answers
252 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 ...
2
votes
3answers
32 views

How much wattage to choose for LED light when replacing flourescent light with LED?

Suppose I have a circular 22W flourescent light at home and I want to replace it with LED of similar brightness. How much wattage should this LED have? Any rule of thumb as guidance? The salesman at ...
1
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1answer
4k views

LED lights strip quickly flashes and goes off

I've just recently constructed some cut to size RGB LED strips to fit around some shelves using T & L connectors. When I finished and connected the 12v adapter to turn them on, all the LEDs ...
0
votes
1answer
58 views

LED light turns on

I have an led light in the ceiling fan in a bedroom that turns on at will. I thought it was the bulb needing replacing but I’ve replaced the bulb and still middle of the night the light turns on by ...
3
votes
3answers
1k views

What's the “correct” way to install LED drivers for accent lighting?

I want to install LED strip lighting behind crown molding in my office. In my particular install, I'm using 3 strips of SMD 5050 RGBW LEDs, which draw about 72 W per strip. From what I can gather, ...
0
votes
1answer
180 views

Troubleshooting a String of LED Recessed Lighting Fixtures

I have 5 LED-based recessed lights on a 3-way switch that are problematic. When I activate the circuit, I rarely get all 5 lights switching on. If I turn them off and back on again, they all work. ...
7
votes
2answers
70k views

Why won't a LED bulb work in a standard 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 ...
1
vote
1answer
28 views

LED light is on when it should not be

I have 3 12v LED under cabinet lights that I plan to install. The final install goal is to have the line power (120v) controlled by a pre-installed light switch (1-way) which currently operates 4 pot ...
0
votes
1answer
513 views

Can I “daisy-chain” LED strip lights to my bathroom exhaust fan and have them work on the same light switch?

I just finished installing a new exhaust fan in my bathroom. I have access to the ceiling before I patch up the old hole where the old fan used to be. A lot of people tend to connect a recessed light ...
1
vote
1answer
40 views

LED Light in Ceiling Fan only works with a non-LED next to it

I have a Harbor Breeze ceiling fan with two light ports and a remote control. The lights are e12 (candelabra) base, but I need some brightness. I just bought some 12W LED bulbs (100w equivalent) and ...
0
votes
2answers
45 views

is it permitted to invert the line/neutral polarity on an AC->DC power supply?

I'm trying to work through the parts required for an LED strip light project. I'm considering this power supply as the driver, driving about 20' of 24V LED strip. I've worked with similar but ...
1
vote
2answers
376 views

GE dimmer works with 3 LED lights, somewhat with 4 and not at all with 5

I've got a brand new single pole GE 14294 Z-Wave Plus dimmer. Before I try to connect it to z-wave, I wanted to make sure it was working. I have five LED lights (4W, 65mA, BR20 flood) lights in ...
1
vote
5answers
96 views

LED Bulbs won't fit my garage door opener

These are the last bulbs in the house that I have not been able to change over to LED. You might be thinking to yourself, they only turn on for 1 minute, what is the big deal. I've started to notice ...
1
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2answers
5k views

Spot light LED bulbs (MR16) flash once when turned on. If I put 1 normal halogen in then it solves the problem. Why?

I have 5 spot light bulbs in my bathroom. All use MR16 connection. I replaced them all with 5w LEDs and when I turn on the switch they flash once then go off. If I remove one so there's only 4 then ...
12
votes
3answers
2k views

Can someone explain how this makes sense electrically?

The wiring in my house is... odd. Nearly every pair of outlets has one of the outlets connected to a light switch. Sometimes that switch is quite far from the outlet even when there are other closer ...
1
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2answers
47 views

Intermittent Flickering LED Strips

I have 10 separate LED strips behind a dropped ceiling feature. Each seems to have its own driver and none appear to be connected to each other except via the same power source and switch. Two that ...