http://www.lightmobile.com/cpdz_show.aspx?id=423 <br />Performance characteristics: <br />The white light can reach more than 2500 meters. <br />Energy-efficient: It adopts imported HID bulbs, which have high lighting efficiency, good visual effect, long life-span and strong shock proof performance, and the color temperatures are optional from 4,300K to 6,000K. <br />It adopts a new generation of lithium battery, which is safer and has various advantages, such as memoryless, low self-discharge rate, long cycle life, intelligent over-charging protection, over-discharging protection, short circuit protection, environmental protection and no pollution. <br />Technical parameter: <br />Serial No. <br />Parameter name <br />Parameter values <br />Serial No. <br />Parameter name <br />Parameter values <br />1 <br />Rated voltage <br />12.6 V <br />2 <br />Charging time <br />8~10 h <br />3 <br />Rated capacity <br /> 7.5Ah <br />4 <br />Current <br />2.5A <br />5 <br />Luminous flux <br />2,400Lm <br />6 <br />External dimension <br />Φ123×205mm <br />7 <br />Average bulb life <br />10,000 h <br />8 <br />N.W. <br />1.6 kg <br />9 <br />Rainproof <br />It is in line with GB 4208-2008 standard