I was at the lake on Saturday, and the lady driving my girlfriend and I around had gotten stopped twice for a running light being out. The first time she got a ticket, the second time a warning. She now carries glow sticks for when a bulb goes out. However, when we were heading back to her house, it was dark, and the red running light had gone out. I had been showing her my phone at dinner, and she was very impressed. When she found out she had no red glow stick, she said too bad I couldn't use my phone. *lightbulb comes on* I turned on the "color flashlight" app, and changed the color to red, then sat at the front of the pontoon boat and held the phone out front, with a death grip that would've completely stopped an iPhone from being functional. Anyway, it worked quite well! Amazing devices, these DX's!