... to 6,700K Natural white: 4,000 to 5,000K Warm white: 2,700 to 3,500KGrade: IP60 80% more energy ... LED lighting products could not be used in the sealed or closed fixture Features and advantages: Major replacing E40, E39, E27 ... color, high CRI with great directionality Fast turn on, no warm-up or cold start problems Solves 4 difficulties for LED packaging, heat ...