... , 1x18, 2x18, 1x28, 2x28, 1x36, 2x36... Electronic ballast for T5 or T8 fluorescent lamp 1x14, 2x14, 1x18, 2x18, 1x28, 2x28, 1x36, 2x36 ... -lightning and abnormal lamp protection. Good electromagnetic compatibility, with heat, moisture, fire, explosion-proof and other functions. The surface temperature is low ...