http://www.lightmobile.com/nefg_show.aspx?id=434 <br />Main parameters: <br />Rated power of light source: ≥80W <br />Working voltage: 16.8V <br />Battery type: Polymer lithium-ion battery,8Ah <br />Charging current: 4A, <br />Charging time: 3 hrs <br />Working current and voltage: 5A@16.8V <br />Working temperature: normal temperature <br />Light spot uniformity: 70% <br />Rated working time: ≥1h <br />Light spot size at 0.5 m: length: ≥140mm, height: ≤8cm <br />Projection angle: 10 degrees <br />Shell: aluminum alloy <br />Heat dissipation: air cooling, housing temperature rising ≤15℃ <br />Shell dimension: 235*280*45mm <br />Net weight: ≥3.5kg <br />Usage: <br />Mainly used for the detection of footprints, traces and micro material evidence, etc. on all kinds of ground.