Topbands unique advantages:
1 slow start with no inrush current, extend the bulb life two times.2 starting current of the cold bulb less than 6A.3 starting power of the warm bulb less than 35w.4 starting power of the cold bulb less than 55w.5 in the case of vibration,the power change less than 3w (others are 17w)6 rated power is very stable7 after the bulb aging, the bulb still lights up even if the bulb voltage drops to 150v, others wont light up when the bulb voltage drop to 123v.8 output frequency is 370HZ, reducing the electromagnetic radicalization
H4-3 H/L Slim ballast 35W slim Ballast :
Ballast Test :
Factory :
New H4-3 High and low kit without wire 12V 35W