* Output voltage: AC 85-260V DC12V 24V 36V 48V
* Frequency: 50~60Hz
* Power Factor: >0.9
* THD: <20%
* Power: 28W
* LED Qty: 28PCS*1W
* Luminous Efficiency: >=80lm/W
* Luminous: 2300lm(Tj=60 centigrade, Ta=25 centigrade)
* Light Efficiency: >90%
* Illuminance: (Height=6 m >=13lux; (Height =8 m ) >=7.5 lux; ( Height =10 m >=4.5 lux; (Height =12 m >=3 lux.
*Area Light: 20*8 m (Height =6 m ); 26*10 m (Height =8 m ); 33*13 m (Height =10 m ); 40*16 m (Height =12 m )
* Color Temperature: 3000~7, 000k;
* Color Rendering Index: Ra>75%
* Power Factor: >= 0.85
* Working Temperature: -30 centigrade ~+ 55 centigrade
* Suitable Humidity: 10 % ~ 90 % RH
* Material: Aluminium Housing +PC
* base type: E40
* Product Dimension: Φ 90x275 mm
* Net weight: 1Kgs
* Protection Rating: IP60