... 3800k—4800kCool white: 5500k—6500k FEATURES:This product adopts aluminium alloy lamp fixture, which makes its texture harder, weight lighter, heat ... 500lm, light efficiency reaches 100lm/w. Compared with conventional incandescent lamp, lighting efficiency enhances 5 times, and saves 80% energy ... lifespan, which is more than 50,000 hours. It’s 10 times than the conventional energy saving light, 50 times ...