Kid had to peddle too fast with factory gearing of his 16 inch trek jet; it was simply geared too low (almost 1 to 1). This fit well and significantly improved his ride with a close to 2 to 1 ratio.
I was replacing my original WA halogen, and I wasn't sure that this bulb would be comparable since it's not listed as a halogen. I put the replacement and was pleasantly surprised. I guess I hadn't noticed how dim my old light had become with time, because in comparison this bulb is a spotlight. Perfect. Color tones are right on the money. Thanks.