... paralleling),E40 BASE,SCREW.COST:(BELOW 100SETS): 25.5USD,FOBSHANGHAI.DRIVER for 28W :8.5USD,FOBSHANGHAI.PLEASE Arrange LEDS 7 in ... ),E40 BASE, SCREW.COST:(BELOW 100SETS) SS30H1: 43USD,FOBSHANGHAI.DRIVER for 30W :8.5USD,FOBSHANGHAI.PLEASE Arrange LEDS 10 in series ... SCREW.COST:(BELOW 100SETS)SS30H2-H WITH HOLDER: 56USD,FOBSHANGHAI.DRIVER for 30W(10LEDS IN SERIES,3 paralleling) :8.5USD,FOBSHANGHAI.Size ...