Here are Candlepower's technical bulletins. They're PDFs, universally readable on any computer with a program such as Adobe Reader. Got further questions on these or any other technical topics related to bulbs? Please
What makes a bulb "DOT legal"?
Are H4, 9003, and HB2 bulbs the same?
Using 9007 bulbs in 9004 headlights
High-wattage headlight bulbs: What you need to know
Interested in HID Kits? Before you buy,
get the facts