This Philips Advance IZT-154-D Dimming Ballast is designed for use with a single F54T5HO 54W T5HO fluorescent lamp. The ballast operates on 120/277V and has a white color. It is made by Advance and has a product height of 1.30 inches, a length of 15.00 inches, and a width of 1.00 inches. The ballast has a wattage of 54 and is ideal for use in business and industrial settings, as well as for facility maintenance and safety purposes. Price is for one but we have 17 available