Specification: 1) input voltage range : 9v~16v 2) rated voltage : 13.2v 3) cold light up current : 6.4a 4) hot light up current : 4.3a 4) max. Start voltage : 23kv 5) input current : 3.2a 6) output power : 40.2w 7) working temperature : -40~125ípc 8) size : 5.6cm*5.6cm*0.8cm Unit size: 70x62x12mm White box size: 172x70x45mm unit weight:0.3 kg