Stye No. : EP-F002 Standard package: 2 bulbs, 2 ballast, some accessories Installation manual Unit size: 31× 21× 6.2mm Carton size: 46.5× 33.5× 37.5cm( 10pcs in one carton) Carton N/ G.W: 20.5kg ( for single beam) ; 24kg( for Hi/ Lo) Size of ballast EP-B002: L90× W78× H31mm Input voltage: 9-36v Rated voltage: 13.5V Max start voltage: 23kv Max input current: 3.2A Output power: 35W Working temperature: -40 - + 105 Power efficiency: above 83.5% Working frequency: 260-310Hz Lifetime of ballast: 3500 hours Lifetime of xenon bulbs: over 2500 hours