We tested the low-beam performance of single-filament (9003) and dual-filament (H7) bulbs from GE, Hella, Philips, and Sylvania, and PIAA's dual-filament bulb. We also compared their performance ...
Those with 2700 K are closest to incandescent bulbs; ones with 3000 K are similar ... and over 63 seconds scored poor. The Sylvania Ultra-LED 100W LED20A21/DIM/0/827 is part of the Lightbulbs ...