no. (序号) item （项目） description （描述） 1 input voltage (输入电压) ac 85-265v 50hz/60hz 2 led power (led 功率) 18w（12-20w可选） 3 the power/pfc/efficiency (电源/pf/效率) isolated power supply, pfc > 95, efficiency > 89% (隔离电源，pfc>95,效率>89%) 4 led type and qty (led型号和数量) smd2835 /60pcs（60颗smd2835灯珠 晶元芯片） 5 material (材质) aluminum alloy + pmma +ps+ waterproof silicone(铝合金+导光板+扩散板+防水硅胶) 6 product color (产品颜色) white/dumb silver (白色 / 哑银) 7 color temperature (色温) 2700-3500k/4000-4500k/5500-6500k 8 luminous efficiency (光效） >90 lm/w 9 cri (显指) ra>80 10 dimming (可选调光) 1-10v / pwm / resistance / silicon controlled dimmer optiona 11 colour modulation (可选调色) 2700 to 6500k 12 view angle (发光角度) 120° 13 fixing ways（安装方式） spring embedded(弹簧嵌入) suspending (吊装) embedded (嵌入) 14 operating environment (工作环境) temperature (温度): -20℃ — 45℃ humidity (湿度): 10% — 90% 15 storage environment (储存环境) temperature (温度): -20℃ — 85℃ humidity (湿度): 10% — 90% 16 life time (使用寿命) more than 50,000 hs (大于5万小时) 17 ip grade (ip防水等级) ip65 18 ik grade (ik防撞击等级) ik01 19 luminaires class (灯具类别) class ii 20 product size (产品尺寸) 295mm*295mm*12mm 21 product weight (产品重量) 1.0kg 22 certifications (安规认证) ce rohs 23 remark (备注) this specification is for reference, we can make it to your request 以上参数仅供参考，可根据客户要求订做