Input voltage: 9-18V DC Steady-state flux: 3,000 ± 2,000lm Operating current: 4.0A Turn on the lights output: >70% at 2 seconds, >85% at 3 seconds Operating temperature: 40 to 105°C Steady-state output power: 50W ± 3W Lifespan: >3,000 hours Steady-state output voltage: 85V ± 17V Anti-electromagnetic interference: S95/54/EC Instant output voltage: 23,000V Size: 80 * 75 * 21mm http://www.chinaautomotivelighting.com/