18 gauge SPT2 wire with C7 bulb polyester sockets. White powder coated 3/8″ cold rolled steel on support frame bars. White powder coated 1/4″ cold rolled steel on secondary frame bars. Support bars are welded to a 2 1/2″ x 3 3/4″ black powder coated plate for insertion into mounting hardware. Can be installed on a utility pole with adjustable steel straps or lag bolt. LED’s have capacitors for heat regulation. 2 super bright flat diodes in each bulb. Male plugs with a 5 amp fuse. Includes 1 replacement fuse.