Q: I thought it would be a cool idea to upgrade my tail, stop and turn lights with LED replacements so they'd be brighter. The first set of LED bulbs I tried didn't get bright enough when the brakes were pressed so I returned them. The second set is OK except the ones for my turn signals flash really fast. Is this normal or OK? I can try a third set, but's a pain to remove my lenses to change the bulbs. Suggestions, please. -Duey
A: Ugh! Some imported/aftermarket LED retrofit bulbs are poorly designed, causing problems with socket fit, excessive length (conflicts with lens), poor brightness separation, flickering and premature burn-out. Assuming one finds a workable pair of bulbs that differ noticeably in brightness between tail and stop, the next hurdle may be a situation with the turn signals called hyper blinking. This isn't a fault with the LED bulb other than it draws much less electrical current than the incandescent bulb it replaced, which confuses the lighting control system.