These triple pigtail adapters can be used on any H4 equipped equipped led headlight that is round, 7” in diameter and can operate in a 24v system. It makes any headlight of that size and type a “plug and play” military headlight. This is for the purchase of a set of 2 (pair) H4 9003 HB2 headlight female coupler connector conversion rubber plug 12 gauge awg for military vehicles as follows - Humvee M998 M35 M35a2 M925 M925a2 M939 and any other M series vehicle.