The anti-static impact and chemical resistant polymer resin construction of the yellow ProPolymax Flashlight from Streamlight is well-suited to use in harsh environments, such as construction sites or emergency response. The C4 LED is controlled by a TEN-TAP programmable tail switch which allows you to select one of three different programs including high/low/strobe, high only, or low/high. On high the light outputs 300 lumens, while selecting low provides 50 lumens. The strobe mode provides up to six hours of signaling. IP67 waterproofing means it is submersible to 3.3' for a half hour, and is rated to survive a fall from up to 9.8'.