... 1x18, 2x18, 1x28, 2x28, 1x36, 2x36... Electronic ballast for T5 or T8 fluorescent lamp 1x14, 2x14, 1x18, 2x18, 1x28, 2x28, 1x36 ... 90V-260V power output remained unchanged. With over-current, over voltage, anti-lightning and abnormal lamp protection. Good electromagnetic ... effectively improve the quality and enhance the illumination lighting. High power factor, harmonic content is low, good anti- ...