I just keep tryin to get my 2002 iron barrel headlamp bright enough to see well, without suckin up more power than my alternator can keep up with. After installing an H4 bucket from our Host, installing a Sylvania Silverstar Ultra & getting stranded on the roadside for a while from low battery voltage, I do believe....I HAVE ARRIVED. It took a Cyclops a/c to d/c rectifier module($35.99) & an H4 6000K HB2 COB LED hdlmp kit from Paradise Lights($18.99). The bulb actually burns 2 of the 3 leds' on low & all 3 on high beam. I loaded an extra battery into my saddlebag & rode till after dark, 3-4 hrs w/ plenty of stops on the way & all is well & REAL good night light.