Suitable for: Our electronic ballast is designed to operate 2 x 36 watts T8 Fluorescent TubesOptimization: optimization of the circuit matching design, the electronic ballast is designed to optimize the performance of the tube electrical design No noise: the fluorescent lamp ballast works without noise, provide you with a more comfortable environmentEnergy saving: the electronic ballast for the fluorescent lamp can be an energy saving system provides higher luminous efficiencyEye protection: this fluorescent lamp ballast is no stroboscopic, which can protect your eyesightT8 2x36W Wide Voltage Electronic Ballast Instant Start Fluorescent Lamp Energy Saving Sale Description The electric ballast is placed in series with a load to limit the amount of current in an electrical circuit. It is used in fluorescent lamps to limit the current through the tube, which would otherwise reach a destructive level due to the negative differential resistance of the tube voltage characteristic. Features Electronic Ballast -Color: As shown.. -Material: ABS.. -Size:21x3 cm / 8.27x1.18 inch.. Normally, clockwise rotation corresponds to boost pressure, counterclockwise rotation corresponds to pressure.. Package Including 1 * Electronic Ballast Note: Due to manual measurement, the size may have an error of 2 cm / 1 inch; Due to different screens and angles, the color and size may be slightly different, thank you for your understanding!