... , E39, E27 and E26 LED source: 30pcs BridgeLux LED chip Color temperature: Cold white: 5,500 to 6,700K Natural white ... Estimated lifespan: 50, 000 hours Cool, neutral white color/warm white color, high CRI with great directionality Fast turn on, no warm-up ... , make sure the radiation diameter on the ground is accord with the standard sizeApplications: Secondary roads, pedestrian streets, parking lots, ...