Our LED Combo Upgrade II replaces the incandescent bulb of a AA mini Maglite with the bright white beam of LED, and the 2-handed On/Off twist with a simple push-button tail cap switch. Your AA Mini Maglite will not only be easier and more convenient to operate, it will have higher quality, more powerful, and more efficient illumination. The LED bulb lasts a virtual lifetime and uses less power, giving you 5 times the battery life. The LED Upgrade Combo II is also fully focusable, so you can adjust its beam from wide flood light to narrow focus, according to the task at hand. It's an easy, economical, and ecologically responsible way to improve the quality and convenient functionality of your AA flashlight. Extends battery life - 25 hours. Shockproof. Brightness: 30 lumens. Focusable - beam projects 40m. Easy-to-install push-button On/Off tail cap switch included. Compatible with AA Mini Maglite flashlights. Simple installation, it's as easy as replacing the incandescent bulb in your flashlight.