It’s no secret that traffic is a major bummer. Luckily, here in NYC, it’s not often that we’re the ones behind the wheel during the daily grind. But, for those golden moments that we are in the driver’s seat (hopefully, not during rush hour), it’s important to be prepared with the
ThinkGeek :: HexBright FLEX - 500 Lumen Open Source Flashlight - It comes preprogrammed to provide low (50 lumens), medium (175 lumens), or high (500 lumens) output of light or even blink on button press. But it has an Arduino-compatible microcontroller that's open source, so you can customize the flashlight to fit your needs.