So you want to capture cool photos in the dark with your smartphone? ReveaLED can help. It is a UV LED Flashlight for smartphones and tablets that connects to the audio jack of your device to allow UV light photography in the dark. It has a rechargeable battery, so you can use it without connecting it to your smartphone.
To use the device, simply plug it into your smartphone or tablet, and you will be able to take glowing pictures of objects around you. ReveaLED is getting funded on Kickstarter.