... 40050 Standard 2) Dustproof : Accord with SAE J575 Standard 3) Shockproof : Accord with DIN 40046 Standard3.Protect Function: 1)Reverse voltage protection: No ... after Open circuit. 4.Product Features:1)Super slim shape with special DSP(digital signal processing)system circuit, flat transformer structure ... matches lamps as H1, H3, H4, H4(H/L), H4 with halogen lamp, H6, H7, H8, H9, H10, H11, H13, 9004, ...