The first thing to check off the list is the headlight housing — a brand-new headlamp bulb won't help if the ... Do HID and LED headlight bulbs dim over time too? Yes, as they age, HID (High ...

A Christmas tree light tester is an essential Christmas light repair tool. Some Christmas light testers work by sliding each bulb through a ... Newer style LED (light-emitting diode) lights ...

Moreover, getting the full benefit of xenon or LED requires having headlamp assemblies designed for that type of bulb. Halogen bulbs are the cheapest, though more expensive replacements that claim ...

Was it all marketing hype? Or, did we not know enough about LED aging to predict the true useful life of a bulb? I put these questions to the test. Join me after the break for some background on ...

So next time one of those cheapo smart bulb starts flickering, you might want to take a hammer to it before tossing it in the trash can; you never know where it, and the knowledge it has of your ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Megan Wollerton We have finished a new round of testing and will update ...