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2answers
55 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 ...
0
votes
1answer
70 views

When connecting LED tape lights to a transformer, should I daisy chain the strips or install home runs for each strip?

I'm in the planning stage for adding under cabinet LED tape lighting. I have four seperate cabinet areas to reach. Before I drywall I'm planning to install a standard wall switch that goes to an ...
4
votes
7answers
8k views

Will switching to LED lightbulbs make a significant difference in my electric bill?

I asked Reliance Controls about a THP103 meter that I was having trouble with. Turns out that it's not a true RMS meter and thus is unable to give you accurate readings on a CFL or LED installation. ...
1
vote
2answers
25 views

Retrofit a ceiling light with RGB LED tape/lights?

I have a ceiling fixture in the kitchen that I like and can't find a replacement electronic ballast (Tospo TP120-1/26UPL 26W). A replacement fixture has been hard to find and stupid expensive. I ...
0
votes
1answer
41 views

Dimmer not turn the LED on

I have install 2 Lutron 150W(LED) dimmer and connect it to 2 LED recessed light and 6 LED recessed light respectively, all LED light are 5W(6000K) with a driver of it own. There are few problems ...
5
votes
1answer
10k 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 ...
0
votes
1answer
58 views

Led strip lights

Hi I have installed a small run of LEDs but they do not work at all unless I reverse the connection that goes directly on to the stip so that it's not lining up with 12v symbol. I tested everything ...
1
vote
2answers
52 views

LED light bulb flickering in socket, incandescent works fine

I have a couple of outdoor light sockets with built in motion detectors. These seem to work as you'd expect with regular incandescent bulbs- you can set a timer for how long you want them to be on ...
0
votes
0answers
36 views

LEDs on dimmer, left alone, eventually fade to off

I replaced some halogen bulbs in my recessed cans with some LED retrofit kits I also replaced the dimmer with a new digital LED dimmer. When I dim the lights down to a low-ish setting, I can wait ...
10
votes
3answers
86k views

Why do my LED lights stay on, even when the switch is off?

I have two LED lamps in my corridor, and when I switch them off, they keep emitting light (not very strong, but it's annoying at night). What can it be? How can I fix it?
1
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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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2answers
5k views

How can I control several LED strips with one remote control?

I want to install several LED strips that cannot be connected to each other. Each would have it's own power supply. Is there a way to control them all with a single remote control? I seen several ...
1
vote
2answers
2k views

What voltage adapter do I need for a 5 meter 5050 LED strip?

I have a 5050 5 meter LED strip and it requires an AC/DC adapter to run the full strip. I was told that I needed a 2A adapter, but I went to electronic store to buy an end adapter and they said this ...
-1
votes
2answers
163 views

What's needed to add an Osram Lightify bulb to a Philips Hue installation

I have started my experiments with Philips Hue with white bulbs, and so far it looks appealing. I would like to go on and add some more interesting bulbs, namely Osram Lightify Tunable White. Googling ...
1
vote
3answers
106 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 ...
5
votes
7answers
5k views

Why will 26 1.2W 220V LED lights not work with an 800W inverter?

We live off the grid and have just installed 26 220V 1.2W LED lights. We are using 220V as the batteries are some way from the house and and thick copper wire is expensive. Everything works on the ...
1
vote
2answers
1k views

Why do LED lights with a dimmer stay dim and won't go bright again?

I have a chandelier with five lamps. I brought an LED compatible dimmer and changed out the switch for the dimmer. I brought five dimable LED bulbs. The bulbs and dimmer worked for a little while, but ...
1
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2answers
2k views

What gauge wire for long run from power supply to LED light strip?

I am wiring in some 5050 RGB LED strip lights in my basement. There is a small utility room adjoining and I'm keen to keep the transformers and signal amplifiers in there in order that they can be ...
0
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0answers
19 views

dimmable led bulbs won't work in dimmable fixture

Our living room has 4 dimmable lights controlled by 1 switch and slider. Many years ago, we replaced the incandescent lights with fluorescent bulbs (we didn't know that fluorescent bulbs don't dim out ...
1
vote
1answer
15 views

120V LED Light Power Supply

I have an LED driver: But I cannot understand the 12-40V @ 350mA and what I should be looking for to replace it with. The light gives no indication of voltage or draw so I'm trying to match this ...
0
votes
0answers
26 views

Philips Hue dimmer switch detailed manual

I have bought a couple of Philips Hue white sets, including two dimmer switches, and started playing with them and various compatible apps. Normally, a dimmer indicates the command transfer by a green ...
2
votes
1answer
27 views

Modify T3 Bulb for a T4 Socket

I messed up and got G8 T3 LED Bulbs to replace G8 T4 Halogens. The bulbs work just fine in the sockets except the pins are smaller than the socket was designed for (T4) and don't stay well. They ...
1
vote
1answer
265 views

Dimmer switches & LED lights: Lights keep turning up to max and won't stay dim

I'm a tenant in an apartment and we're having strange lighting issues. We have a dimmable light switch panel in our lounge with 2 controls, controlling 4 LED spotlights each. The dimmers make a ...
3
votes
1answer
34 views

Only 2 of the 3 LED bulbs lite up

Two light fixtures in bathroom with 3 bulbs each. They can can 100 watt incandescent, I have 800 lumen LED, and there is a dimmer switch. In both fixtures, going left to right, the first two bulbs ...
1
vote
1answer
69 views

Why have my LED bulbs started flashing when I turn them off?

I have six LED bulbs in my flat. They’re all the same model (LE 10W A60, bayonet fitting), and they were all purchased at the same time – September 2014. I bought them as a set of five and a single, ...
17
votes
6answers
4k views

Can I safely use a 9w LED bulb in place of a 40w incandescent?

I bought a reading lamp that on the box says: Max 1x40W The shop also sold me an LED light bulb that says: 9W=75W So my question is, can I use light bulb or not? I am confused between the 75W and the ...
2
votes
1answer
314 views

Is there such a thing as an actual 60W draw LED or CFL bulb?

CFL and LED lightbulbs are sold as being "40/60/100 watt equivalent". They're designed and sold as replacements for a certain wattage of incandescent lamp. I have some fixtures where I want a very ...
8
votes
7answers
54k views

What exactly is a PAR type LED lamp, how does it differ from R/BR type LED & CFL lamps?

I am in the process of replacing my incandescent bulbs with more efficient alternatives. My home is about 14 years old, I've owned it for a little over three years. It seems most of the bulbs that it ...
4
votes
1answer
53 views

How do I label fluorescent fixtures converted to LED?

I am going to replace some regular fluorescent tubes that are about to burn out with LED ones and would like to add a sticker inside the fixture to advise a future owner to not install regular ...
3
votes
2answers
117 views

What does it mean when a lamp/led starts blinking randomly?

Recently I noticed that my led bulb turns on/off for a split second randomly over the past few days. Does this mean it is starting to die or could it be something wrong with the lamp? I've unscrewed ...
1
vote
3answers
19k 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 ...
3
votes
1answer
61 views

Can I cut the recessed lighting housing rails to make them fit in joists 12" apart?

I have this guy -- I got new work since the drywall was removed. Can I cut the excess rail (past the nail) so it fits the joists, which are 12" apart? Or does that mean they're isn't enough space ...
4
votes
2answers
6k 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 ...
2
votes
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 ...
2
votes
2answers
55 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 ...
0
votes
0answers
27 views

Dimmable LED's dim for a minute then stop dimming

I installed a new light fixture in our bathroom. The new fixture allowed bulbs with more lumens, so I decided to put a dimmer on the light. The bulbs I used are Great Value Dimmable LED bulbs. I ...
0
votes
1answer
77 views

LED Light Glowing

I just replaced a wall lamp with an LED lamp. When the lamp is switched off, the LED has a faint glow. It isn't a phosphorescent glow; it is receiving power. I noticed it at 4:00 AM after it had been ...
0
votes
1answer
34 views

LEDs to illuminate underside of king bed

I purchased a king sized bed that was designed in the 1980s, and it was lit from underneath. I thought that the bed was arriving with this lighting still in place, but the lighting was evidently ...
1
vote
2answers
531 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?
0
votes
3answers
65 views

Can I replace 1 volt lights with 2 volt lights?

The 1 volt LED lights in my range hood are going out and very dim, almost like a night light. Cheap hood. I cannot find replacement bulbs for these because the bulb cannot be removed. The whole kit ...
1
vote
2answers
68 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 ...
0
votes
1answer
61 views

How do I connect several led strips to build a single light panel?

I want to build a very bright rectangular light panel (ca. 1mx0.7m). The idea is to put 8 rows of led-strips behind acrylic glass. I'm using an optonica 5050 led strip that wants 14.4W per meter. I ...
1
vote
0answers
45 views

25 degree by 36 degree (oval) LED light beam spread

I have some Philips PAR20 2700K LEDs in my house. Some are 36 degree, others are 25 degree beams. I was wondering if there is any way to get an oval beam LED light bulb, as in a 36 by 25 degree light ...
1
vote
2answers
57 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 ...
4
votes
2answers
3k views

LED lights delayed when turned on

I had my house built last year and after moving in noticed that in our living room (6 led downlights) when we turn our lights on 5 turns on at once and the 6th one will be delayed ranging from 1/2 sec ...
0
votes
2answers
211 views

What do I need in order to install under cabinet lights?

I want to install hardwired, under-cabinet lighting, but I need some guidance on what kind of devices (transformers/drivers/adapters) I need to complete the project. I know very little about ...
2
votes
1answer
1k 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 ...
0
votes
0answers
124 views

I installed led strip lighting in parallel and they burned out

I put 4 strips in my action figures cabinet, and combined all 4 positive wires and all 4 negative wires, and then connected them to a 12V power supply. I turned them on and after like 5 mins they shut ...
2
votes
2answers
100 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 ...
3
votes
1answer
127 views

Extractor fans not working with LED bulbs?

I have 2 bathrooms, each with both an extractor fan and a ceiling rose mounted light bulb. The fans are Greenwood Airvacs. They are 20 years old. The fans have automatic run ons of about 15 minutes ...