Many of us have used our smartphone’s flash as a light in a pinch. The bright light is great for use as a flashlight, but as a lamp it is rather limited. That is, unless you have the handy Travelamp ($13, Amazon).
The Travelamp uses the steady led flash to light up a white silicone mold, providing smooth and even light to your surroundings. The unit is designed to wrap around the smartphone, making it convenient to use.
While extended use of the light would no doubt have dire effects on your device’s battery charge, it could prove to be handy in the right circumstances. And since you may already be carrying additional battery sources for your device, it could eliminate the need for additional equipment.