A set of bike lights. Thanks for the recommendation @mrk am properly impressed at the performance for the price. Now if I could just figure out how to get it flashing.
I bought them too based off the same recommendation and the front can be made to flash by double pressing. If it's off when you double press it goes into SOS mode, if it's on when you double press it goes into regular flash mode - pressing again (single) will decrease the speed of the flashing from "melt-your-brain-strobe" to, "moderately-annoying" and finally "acceptable blinking"... pretty sure those are the official names.
Holding down the button does something too but I haven't got the foggiest what that something is...
The rear lights only last an hour and a half if left on constant mode but the one I left flashing is still flashing 4 hours later. I haven't done a runtime test on the front but at least there's a battery life indicator to warn you if it's getting low.
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