FOR CONVERTING LAMP HOLDERS THAT HAVE AN ½” SOCKET TO A 10MM BASE.
Connection bush 10mm male to 10mm female
1/2" Male To 10mm Female Brass Lamp Holder M10 Thread Reducer Bush Adaptor
Reduction bush 10mm male to 8mm female
Reduction bush 10mm male to 1/2" female chrome plated
Reduction bush 10mm male to 4mm female
2.1mm x 5.5mm DC Power Male to Female 5 meter 12 Volt Power Extension Cable