Body mounted lights illuminate your viewing area effectively

Cell phone light can save you many electrificity at night and if mounted can save your hands holding phone.

-Illuminating "only working area" has many advantages.
-For any task that require light, more light means easier task in many cases.
-Handy phone can now make you more productive when mounted as light.
-If you work on "small" level one can use it combined with magnifying glass.
-As described here your vision in dark also depends on your current sensivity level.

Light mounted on head



sometimes you can make phone display lighty and permanent by entering call number or entering game-apllication. Expiriment.

neck-mounted, careful with mounting mobile phone, it can fall if not well mounted