We’ve seen that Philips’ dimmable 12.5W 800 lm LED bulb emits light in the same spherical pattern we’ve come to expect from incandescent bulbs. How does it do this? First off, let’s refer back to the ...

LED headlights throw extremely intense light with very little draw on your car's electrical system. Now that they're trickling down to the aftermarket, you can buy a simple plug-in "LED retrofit kit" ...

LED or filament, three-way bulbs have a special base. While a normal Edison-base bulb has the threaded part as the neutral and a center contact for the live wire, a three-way bulb has an extra hot ...