... of strong, independent thermal structure design 1W high power led chipMechanical DimensionsModelColorLuminousCCTForward voltageForward currentView angleSL-WSHP08-F ... and so on-Underground lamps, reading lamps, emergency lights, interior illumination-Miner’s lamps, flashlights, car lamps ... ,Good heat sinkingFactory show Certificate 1W 3W Edison high power led with 110-130lm in stable efficiency