My garage door opener provides an inadequate amount of light from the two 60 watt bulbs in the motor housing. This is a especially problematic during the afternoon hours when it is very bright outside and relatively dark inside the garage. Because of the unusual configuration of my driveway and...

Can I substitute a 400W 1G 2W Push dimmer for a 250 Watt 1 Gang 2 Way Dimmer, safely and without contravening any regulations?

I have a 250 watt ceramic metal halide that uses a high pressure sodium ballast it shut off the other day and now it will re light but only for about three or four minutes then it shuts down it will fire again when it cools down what would it be bulb cap starter or ? It is all close to new any...

I have a 20 amp 120 volt circuit. I have been told that load for a breaker should be 85% of rated capacity and that the formula for determination of required amperage is A=W/V. If this is correct it appears the 14 20 watt undercabinet lights I need would total 2.33 amps. Is this correct? If...

Trying to confirm my thinking on the wattage conversion on fluorescent lights versus standard incandescent bulbs. Example - I have a 2-bulb porch light fixture that is rated for 60 watt bulbs (120 total). I have some fluorescent bulbs that pull 19 watts but are equivalent to a 75 watt...