光源: SMD3528 LED 数量: 288P 材质: 铝 +PC 面罩(透明, 磨砂) 寿命: 50000小时 环境温暖:-20-- 50℃ Environment Humidity: >95% Luminaire efficiency: 90% LED efficiency: 1700Lm/W Luminance Flux: 850Lm Color rendering index: 75Ra Color temperature: 3000-4000K (warm white) 4000—5500K (white) 5500—7000K (cool white)