Shed some light on your surroundings with the SureFire FirePak Smartphone Video Illuminator and Charger. This device features a pair of LEDs designed to fit a 16:9 video frame, and can attach to your smartphone via a SureFire phone case (sold separately). It puts out between 100 and 1500 lumens with an effective range of 50'.
The light's four levels can be adjusted with an integrated side switch or remotely via Bluetooth using a free app for Android or iOS. Its lithium-ion battery lasts up to ten hours at lowest intensity and up to 90 minutes at its highest. Integrated USB and micro-USB ports let you recharge your own device as well as the FirePak, and an indicator light shows your remaining charge.