LED 58W lighting fixture 1. 0.40mm steel thickness 2. powder coating 3. We have the following size:1*18W,1*36W,1*58W,2*18W LED 58W lighting fixture/light fixture :1.0.4mm steel thickness2.power coating3.size: 1*18w,1*36w,1*58w,2*18w,2*36w,2*58w4.iron or aluminium material for you to choosePls see more pictures of the LED wired: