Operate Multiple MR16 & MR 11 Lamps up to Stated Wattage. Short Circuit, Overload & Thermal Protection. cURus (UL recognized components). Solid State Electronics. Dimmer Capability: Leading Edge or Trailing Edge. Maximum Ambient Temperature: 50°C. Auto Reset Electronic Short Circuit and Overload Protection. High Power Factor, Low Total Harmonic Distortion. Aluminum Case, Waterproof Potting.