What is the fire rating range of PC covers for LED tubes?
What is the fire rating range of PC covers for LED tubes? Because the PC cover of the LED is a plastic material, its fire protection standard is based on: flammability UL94 rating. Its fire rating range is as follows: The flame retardant grade of plastic increases from HB, V-2, V-1 to V-0: HB: The lowest flame retardant level in the UL94 standard. It is required that for samples 3 to 13 mm th