It develops a power of 15W with a luminous flux comparable to an old 125W halogen bulb with 2000 lumens. E27 screw connection, available in very warm white light 2700K, warm white light 3000K. Dimmable. Instant ignition. Dimensions: 38x150mm. Designed to emit the right light quality for the Flos IC series with the code RF28665.