ECOSUB bulb is ETL approved. Our optical reflector cover is made of great aluminum alloy material, which can significantly increase the output of UVA and UVB.Radiating and ventilating holes on the top to guarantee a good heat dissipation effect.74 inch independent power switch, and easy to hang it with the hanging hook.he reptile light 5.5 is suitable for UVB reptile lights, incandescent bulbs, heat lamps, ceramic heat lamps, infrared heat lights, etc.