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Have you ever stumbled upon a totally brilliant idea, only to find that you are in a totally dark environment that makes it impossible to write anything down? Enter the LED Moonlight Pen which has the hallmarks of a traditional writing device, but it also comes with a light that makes sure you get to jot down your thoughts even in dark situations. The LED Moonlight Pen also doubles up as a mini touchlight, but don't expect it to flood the entire room. Great for those who do not have a PDA or smartphone in their repertoire of gadgets. You can pick up the LED Moonlight Pen for approximately £5. It requires a trio of LR44 batteries to run.

Pros : Perfect writing device which can be used even in the dark
Cons : Battery replacements expensive in the long run

LED Moonlight Pen Source