... high power smd led 2-aluminium cover 3-50,000 hours warranty 4-CE/Rohs certification led shading light LED quantity/type ... Color temperature: Warm white: 2,700 to 3,500K Neutral white: 3,800 to 4,800K Cool white: 5,500 ... to 6,500KLuminous flux: Cool white: 540lm Warm white: 405lmColor rendering index: ... is less than 3% per 1,000hrs LED lifespan: over 100,000 hours