... 1x18, 2x18, 1x28, 2x28, 1x36, 2x36... Electronic ballast for T5 or T8 fluorescent lamp 1x14, 2x14, 1x18, 2x18, 1x28, 2x28, 1x36, ... . With over-current, over voltage, anti-lightning and abnormal lamp protection. Good electromagnetic compatibility, with heat, moisture, fire, ... content is low, good anti-electromagnetic interference performance, suitable for high-volume group of lights to use, stable and ...