Groundbreaking Features: Powerful, solid-state LED 50-Watt LED Illumination 50,000-Hour Lamp Life – Eliminates Bulb Changes 6,000°K Daylight-White Color Temperature 4 Port Rotating Turret – WOLF, OLYMPUS, STORZ, ACMI Half the Energy to Produce Twice the Output of Halogen 50-Watt LED Illumination Patent Pending Collection Optics and Cutting Edge LED Technology 50,000 Hour Solid-State LED Limits Output Decline to 15% over Lifetime Analog Dimmer Controls Output from 10% to 100% Universal Power Supply Thermal Protection Via On-Board Diagnostics Small Footprint Optimizes Light Transmission Through Cable CE, IEC 60601-1, UL 60601-1, CSA C22.2 No 601.1, IEC 60601-1-2