I am putting 2' X4' fluorescent troffer lights in an Armstrong Prelude ceiling grid in my basement. Armstrong says don't put any weight on the grid, other places I have read place them in the grid and add extra wires to the grid around the lights. Code probably also requires that the lights be...

Can an already in use dimmer switch be used on the new led lights?

I bought a set of 6 Hampton Bay low voltage solar LED lights and now 2 of the lights will not work. The rechargeable batteries work but the lights will not illuminate. How can I fix them or replace the LED? Where can I get LED bulbs?

I just purchased a few LED screw-in light bulbs. Now when ever I turn off the wall switch, the LED light is dimmed but not off. In these same fixtures with an incandescent bulb, the light goes completely off. How do I solve this problem? The house was built in 1979 with 3-wire 12 gage.