Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
Turns on when bumped or moved. Turns off when movement stops (wheel stops moving). Light is pretty bright with fresh batteries. Light is equally bright from both sides (bike). The design lights up the length of the tube, about 2". Batteries last about 20 hours (guess?)? Works after riding in heavy rain.
It's not a showstopper, but it would be nice if they stayed on for 1-2 minutes after movement stops, so they would stay lit when coming to a stop at an intersection. Wife says, it's like having another boy.
Uses AG10 batteries... 8/$1 at the local dollar store. I like these better than sku 21519 (unreliable, 30% DOA) and sku 23111 (manual on/off, 1 side more visible than other). Noticeably catches pedestrian's attention. I only hope the same for cars. Woman on bike got creamed at night from the side a few weeks ago, crossing a busy boulevard.
I've tried a few different wheel lights from DX. So far, this is my favorite for reliability, ease of use, and visibility.
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