... brightness. 6.Long runtime. 4hours(superlight)---30hours(slim light) 7.variable output mode. 2modes with 9 types ... normal light, high light, strobe, stand-by; Professional mode: slim light, lowlight, normal light, high light, super light, strobe, low light SOS, high light SOS, ... 9hours),normal(150 lumens,6 hours) High light(225lumens, 4 hours), super light(245lumens, 3hours) 3.Material: Aircraft ...