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Questions tagged [light]

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37
votes
5answers
21k views

If a light bulb is dead, does it still consume electricity if the switch is in ON?

It's been a week since a light bulb in the bathroom died. I'm wondering if the bulb is dead, does it still consume electricity if the switch is in ON? The light is completely dead, no light ...
11
votes
5answers
2k views

Can 2 light bulbs of 120V in series be used on 230V AC?

I'm considering to buy full spectrum incandescent bulbs in the US, to be used here in Europe. Here these types of bulbs are rare, since it's mostly LED these days. First I thought I needed to step ...
6
votes
2answers
7k views

Why is a white electrical wire connected to 2 black wires?

I just opened my ceiling light to replace it with another mount. I see a white wire connected to 2 black wires, is that right? The middle switch controls this ceiling light.
5
votes
4answers
18k views

Bathroom Light Fixture with no stud or box

I uninstalled my old bathroom light fixture to replace it with a nicer light but found that there is no stud and no wall box behind the sheet rock. The old light fixture is very light but the new one ...
5
votes
1answer
3k views

Can I use a regular E26 LED bulb as a replacement for a refrigerator light bulb?

The light bulb in my refrigerator burned out. It was a 40w incandescent appliance bulb like such: I'm wondering if there is any reason I can not put a 9watt A19 LED bulb such as this one (home depot ...
4
votes
7answers
8k views

I want light controlled by one switch, not two

I have two switches that control one light. I would like to close one of the switches, so that the light is only turned on and off by one of them. I removed the light switch from one of them (pictured)...
4
votes
1answer
2k views

Dimmer switches have no ground wire

I went to replace two kitchen dimmer switches with new toggle dimmers (the old dimmers work, this is only cosmetic). When I removed the face plate, I found the existing switches did not have a ground ...
4
votes
1answer
552 views

Can I connect a shared neutral to my Wemo smart light switch?

Both switches depicted in the diagram are controlled by the same breaker. The other two switches in the box which aren't labeled are controlled by two other breakers. Since I only want to replace ...
4
votes
1answer
538 views

making sense of a confusing light switch box

I'm trying to install a GE Z-Wave 12724 Smart Dimmer and my light switch box looks nothing like I imagine it's supposed to with wires properly identified. This wouldn't be the first improperly ...
3
votes
3answers
1k views

Is it ok that a hot wire connects to two separate switches?

I recently tried to replace my light switch with some smart switches but when I open it, the wiring was a bit odd to me. The top of wire of the first switch was piggy tailed/connected to the bottom ...
3
votes
1answer
99 views

How can I add lights and a switch downstream of a pull-chain fixture?

I have a challenging wiring question. I have power coming in to a pull chain light fixture(beginning-of-run). it needs to stay in its current position. I need to borrow power from it and add two ...
3
votes
2answers
120 views

Does a GFCI-protected bath light/fan unit need separate neutrals?

I hope there is an electrician on this forum who would know the answer to this. I am in the US and must have permits in my area and install per NEC. This is new construction. Installing a fan/light ...
3
votes
2answers
1k views

Two GFCI on 20A bathroom circuit

Long time reader, first time poster... so I thought I had my bathroom wiring layout pretty well nailed but the guy in the electrical department at the local big box store made me rethink my entire ...
3
votes
2answers
644 views

How deep should I embed a 30-foot light post?

I am installing a 30 Foot Round Straight Steel Light Pole, 5 Inch Diameter that I am purchasing from LightMart. I live in the outside of Las Vegas, NV near the mountains where sometimes its very windy,...
3
votes
2answers
254 views

how do I remove this old track light hanger from junction box?

I need some guidance on how to remove this late 1980's vintage track light mounting strap or hanger (brace?) from the 4" round junction box? It appears to have the two small threaded rods, that the ...
3
votes
3answers
432 views

Why can I not turn off my ceiling lights?

Three ceiling lights which worked for years, cannot be turned off. There are three switches, each of which controls all three lights (they are all on or all off). Is there a simple fix or must I ...
3
votes
1answer
362 views

What type of bulb fits in this slot type?

We have this light fixture outside and the the bulb has always been missing. It has two side slots and twists into place once fully inserted. My Google searching and hardware store searches have ...
3
votes
1answer
183 views

How to cut opening in 12" pilaster block-columns for electrical box (porch light install)?

I have two 12"x12"pilaster block columns in my front porch with a poured lintel above and slab below. The pilasters are also poured solid with down-rods and rebar in footer. It is new construction. I ...
3
votes
1answer
2k views

Shower light blinks immediately after vent fan is turned off

When I turn "off" my bathroom vent fan, my shower light turns on momentarily until the fan stops spinning. Both the light and the fan are wired in parallel on the same circuit. If I drop the shower ...
2
votes
3answers
2k views

Can't get bathroom light cover off!

We have tried twisting both ways, pulling etc. No screws visiable. Sorry for awful photo, it's pitch black in the bathroom now!
2
votes
2answers
417 views

Wifi light switch needs neutral wire. Why? AND Can that wire be a skinny one?

What does the neutral wire do on a light switch that responds to wifi? My suspicion is that when the switch is in the off position, the electronics in the switch need to still be powered, so the ...
2
votes
2answers
179 views

Existing light fixture is connected to 2 white wires, black wires are capped

I started to replace a light fixture in a closet and discovered that although 2 wires (each containing a black, white, and ground wire) come into the box, only the white wires are connected to the ...
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 ...
2
votes
2answers
522 views

How to remove broken light protector/cover from inside oven?

I bought a 6 year old house, and the Previous Owners did basically zero maintenance. The oven is a Bosch underbench electric unit, and it looks like the glass cap/protector for the interior light has ...
2
votes
2answers
95 views

Is there a lighting code restricting where lights can be placed?

I am having a new home built in New Brighton, MN, USA. We went over the plans on where we would like our lights, outlets, switches to be placed throughout the home. I asked them to place a light in a ...
2
votes
1answer
100 views

How deep of concrete base do I need for a 35 foot

I have a 35 foot aluminum light pole that has 4 bolts holes in the base of the pole. I need to know how deep and wide should I pour the concrete into the ground. I'm not going to use the light pole ...
2
votes
1answer
161 views

Help with untangling an ancient wiring mess

So, let me preface this by saying I live in a 100 year old apartment building, and I can't tear out all the wiring and start over again. (As much as I'd like to.) In my living room, there existed a ...
2
votes
1answer
44 views

limit detection angle of a motion sensor light switch

Is there a way to limit the horizontal angle of a motion based indoor (occupancy) light switch to it doesn't pick up movement within, say 90 degree horizontal angle only
2
votes
2answers
1k views

Ceiling Fan Lights not burning brightly

My Hampton Bay ceiling fan with light is about 8 years old. The light recently burned out, so replaced with with a 100 E11 halogen 100 watt bulb, resulting in very little light - about 50 watts. I ...
2
votes
1answer
302 views

3-1/4" Pancake Box? - Want to Update Old Ceiling Fixture

Previously, I asked another question regarding this ceiling fixture. I wanted some advice on how to go about attaching a fixture with more than one bulb and whether or not the insulation in the old ...
2
votes
1answer
309 views

Weird wiring configuration, neutral is live

I'm trying to install a wemo dimmable smart switch to replace a regular switch. The original wiring pictured below is unlike the other 8 switches I replaced in my home. It looks like it's hooked up to ...
2
votes
2answers
89 views

LED Bulbs not Starting Properly

Hi: I have some undercabinet light fixtures from IKEA that each take 3 small 12V G4 size bulbs. These bulbs are about 3/4" long x 1/4" wide with two plug-in prongs at the end. The original bulbs ...
2
votes
2answers
144 views

Laundry Room outlet and light not working

My overhead light and outlet in my laundry room are not working, all of the sudden. They are on the same breaker and nothing else in the house is on that breaker. I just replaced the light switch and ...
2
votes
2answers
95 views

Red wire spliced into a bundle of blacks?

This switch currently provides power to the top half of an outlet, through a junction box. I installed some pot lights and want to tie into the circuit, at the junction box. I attach the black ...
2
votes
1answer
35 views

Replacing double light switch 4 black and one red

I hear a popping from one of my old double switches. I opened it up to understand the wiring before replacing. I have 4 blacks and 1 red. I have attached pictures. One of the switches controls a light ...
2
votes
1answer
77 views

How do I properly align an outdoor light fixture?

I was trying to install an outdoor light this afternoon. Unfortunately the outlet box is interfering with the mounting bracket. I looked around at a few different lights and it looks like I would have ...
2
votes
2answers
3k views

How to remove this light globe?

I have not been able to get the glass dish removed from this ceiling light fixture. There are no holes, visible clips or any other clues at how to free the glass. I have tried to turn the dish but ...
2
votes
1answer
71 views

Can I replace a plug with a switch?

I have a dilemma. In my kitchen, there has always been an unused electrical box in the ceiling. On the wall in my kitchen, there has always been a switch that doesn't control anything. I always ...
2
votes
3answers
2k views

How to remove the flush mount ceiling fixture

I am trying to change the bulb in the ceiling fixture as shown in the pic. However, it is not easy to remove the fixture. I twisted the cover counterclockwise but I could not make it. Please help me ...
2
votes
1answer
115 views

Dedicated wiring to luminaire - what's the minimum gauge

I am wiring a luminaire fixture through a short dedicated 1/2" EMT conduit (a couple of feet). The maximum rating on the luminaire is 100W, although I expect to use much lower wattage. What is the ...
2
votes
2answers
66 views

How can I connect my new light fixtures to old fluorescent fixture bases?

I have these old 6 inch recessed fluorescent light cans in my kitchen. I can hardly find the bulbs anywhere so I decided to replace them. I pulled them apart thinking a could simply wire a new ...
2
votes
1answer
135 views

Changing adjustable fixture light bulb when socket and housing are loose

I'm having trouble changing a ceiling mounted adjustable fixture lightbulb. So there's two issues: one, the metal housing is loose and when I try screwing it in, there's a lot of grinding and varying ...
2
votes
2answers
67 views

Replacing an old light switch with a new one. Trying to figure out correct wiring

My old light switch did not have the common labeled and just had two brass screw connectors. Coming in the bottom of the box was a black, a white, and ground wire. The ground was connected to another ...
2
votes
1answer
2k views

Switch with 2 black, 2 white, 2 ground and 1 red wire connected to ceiling light and a receptacle?

I am living in a condo and the owner has asked me to replace a switch from a dimmer to single pole to operate a ceiling fan. Upon inspection the ceiling fan has one 14/2 cable coming in with a black ...
2
votes
2answers
526 views

Can I upgrade to a dimmer switch in my bathroom without using the ground conductor?

I'm installing a dimmer (and thus replacing the left switch in my bathroom) and from the four wall wires only the white and red attach to the left (light) switch and the bare wire (I'm assuming the ...
2
votes
1answer
453 views

Replace light switch connected to a power outlet with dimmer - two black wires to one black and red

I have a light switch that is connected to a power outlet. The light switch has 2 block wires, one coming from the wire and one coming from the power outlet. I want to change this to a dimmer and I ...
2
votes
1answer
2k views

Installing WeMo Wi-Fi Dimmer Switch - Lights not turning on

I have attempted to install my WeMo switch; however, it does not seem to want to work. Before I contact Belkin or my superintendent, I wanted to make sure that it is WeMo that is broken, and not my ...
2
votes
0answers
91 views

Friendly light bulbs, I want them to turn on slowly

I want that the light bulbs in my house turn on slowly, just like when you use an impedance control, but with a simple switch, is that possible?
1
vote
5answers
605 views

How to deal with halogen lights hurting your eyes?

I have gable roof and there are 4 halogen lights on ceilings. If I am sitting upright, it's good but due to the angle of the ceiling, if I move slightly to any direction the light goes directly to my ...
1
vote
1answer
55 views

Do I need to retrofit a junction box when replacing a vanity light?

I am installing a new vanity light. I took down the old one from 1997 and found that there is no box behind the light, only the cable coming through the drywall, (black, white and green/ground.) Is it ...