[Amazingly Bright for Its Size] Powered by a single AAA battery, I3T 2 delivers an output of up to 200 lumens, offering both constant and momentary-on options for various tasks and environments. The flashlight can be initially powered on in your preferred low or high mode depending on your needs [Flexible Battery Options] In addition to an AAA alkaline battery, I3T 2 is also compatible with a rechargeable battery, which can boost the maximum output to 300 lumens [Extended Runtime With Lower Temps] I3T 2 features an extended battery life, increased by 31%, and maintains a surface temperature of less than 45C even during prolonged use [Enhanced Pocket Clip] With the new pocket clip, the flashlight allows for deeper pocket carry and effortlessly goes unnoticed due to its compact design [Hands-free Use] Simply clip it onto a hat brim and you can use it as a convenient headlamp