Wattage & Voltage: 1000 Watts operating at a nominal 263 Volts. Light Output: Extremely bright 110,000 Initial Lumens (reduces to ~86,000 mean lumens over time).Color Profile: 3800K Cool/Neutral White with a Color Rendering Index (CRI) of 65.Base Type: E39 Mogul screw base (39mm diameter heavy-duty commercial base).Dimensions & Lifespan: 11.5 inches in length by 4.6 inches in diameter, carrying a rated lifespan up to 15,000 hours depending on burning orientation.