Water and dust resistant, the thermal recovery system (trs) recycles the heat from the led to heat the batteries and improve performance at low temperatures. molded pocket clip located near the head for easy insertion into pocket - protective rubber lens cover and reflection reduction. rubber covered on/off or momentary switch. electrically non-conductive housing the 2aaa eleed pen i-etb flashlight works reliably even in extreme conditions, making it a highly appreciated tool by construction workers, utility workers, maintenance crews, etc. dimensions: 13.21 insurance: zone 1,2,21,22. certification (atex): ii 2g ex ib iib t4 gb, ii 2d ex ib iiic t60 °c db, sev 11 atex 0174