... °C-20~+40Outline dimensionmm75*60*55Total weight(with battery)g230Protection categaryIP671. Safety: All in one case ... more than 4500 lux for lighting degree, battery usage lifetime 1000 cycles, display cap lamp number ... ,time, battery capacity by digital device, 6pcs dia 5mm ... leds as backup light.5. Economy: Li-ion battery is free maintenance, no need to change the ...