Perf wall / ceiling mount features a white acrylic diffuser and a satin nickel finish. Availabke ina 16 and 23.5 inch diameter version. Two 26 watt, 120 volt, G24Q-3 4-pin fluorescent lamps not included. Electronic ballast. General light distribution. UL listed. ADA compliant when wall mounted. 16 inch diameter x 4 inch height.