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For example, ceiling mounted projectors, garage door openers, stage lighting, all have to be plugged in to ceiling mounted receptacles. Not hard wired. … I just bought some 120volt LED rope lighting that can be much longer and doesn't need a power supply. However, you still can't run it above the ceiling. Good luck! …

Your cheapest, easiest solution is low profile surface mount luminaires. They come in LED and flourescent varieties. If you want to have all lights switched you could use Michael Karas's suggestion …

The National Electrical Code requires light fixtures to be listed. Meaning tested by a listing agency such as Underwriters Laboratories. That aside if this is for your own personal use, the total lum …

Jim Stewart's comment is pretty much right on. That is not a nipple it is what is called a "hickey" by the National Electrical Code. It serves to attach the box to a hanger bar or other spanning devi …

I agree with the other answers if they are both located in the exact same place. Of course this is physically impossible so they would have to be right next to each other in the same fixture and you w …

The code allows you to separate fixtures from their ballasts but it usually only done with metal halides or high pressure sodium mounted in hot locations to keep the ballasts cool. I have never seen …

If they are not lighting consistantly then they are not working right. A couple things I would check: They are miswired. You need to check (or have checked) the wiring for mistakes. …

This is a real personal choice. IMHO The daylight bulbs give a harsher whiter light similar to a mercury vapor lamp. This gives things more of a stark steril look. The cool whites are less harsh. T …

If you decide to try a resistor look for a power resistor with terminals that allow bolts or stabs. You could then use ring lugs with bolts or stab on lugs to connect it. Like this one: http://www.f …

"Hooking it up normally (black to black, white to white), the light fixture will stay on when the power is turned on at the breaker and the switch does not turn it off." This tells you the black wire …

Yes. The photocell is placed in series with the feed from the panel ahead of the switches. The white is the neutral, the black is the hot feed, and the red is the switched hot. Of course, this makes …

Usually a capacitor in a single phase motor circuit is to shift the phase of the start winding so the motor will start. Otherwise a single phase motor will just sit there and hum since it will be loc …

That is a ground wire and should be connected to the equipment ground. If you have a metal junction box then it should also be pigtailed to the ground. Since the fixture you have does not have a perm …

The 2014 NEC states: 210.52 (G) (1). For attached and detached garages with electric power, the branch circuit supplying the garage receptacle(s) will not supply any outlets outside the garage. An …

The lamps will draw more than their labeling since there are losses converting AC to DC for the LED's. The previous poster's math is off but he is correct that the lower voltage means more losses ove …