1.Model:SR-ASL02 2.solar panelMax power:38V 100W (mono-crystalline silicon) 3.Life time of solar panel:25 years 4.Battery Type:lithium battery 24V/48AH 5.battery Life time:5 years 6.LED Lamp:Max power:12V 70W 7.LED chip brand:Bridgelux from USA with high brightness 8.LED lamp lumen (LM):7000-7700lm 9.LED lamp life time:50000hours 10.LED lamp viewing Angle:120° 11.Charge Time:by sun,10 hours (in strong enough sunshine) 12.Discharge Time Full power mode:>17 hours 13.Discharge Time Saving power mode:>34 hours 14.Working Temperature:Range:-20 degrees ~+70 degrees 15.Colour Temperature Range(k):6000-6500k 16.Mounting Height Range (m)9-10m 17.Space Between Light Range (m):40-50m 18.Lamps Material:aluminium alloy 19.Certificate:CE/ROHS/IP65