The Streamlight Polytac LED Yellow has C4 LED technology with a 50,000 hour lifetime. It features a borofloat glass lens and an o-ring sealed. The tail cap push button provides one handed momentary or constant "on". There are 3 hours of continuous runtime to the 10-percent output level. Adjustable head allows for variable spot-to-flood focus Borofloat glass lens, o-ring sealed Tail cap push button provides one handed momentary or constant "on" 3 hours of continuous runtime to the 10-Percent output level Two (2) 3-Volt CR123A lithium batteries with a shelf life of 10-Year
