So far a very cool little light, it doesn't have a switch and it's completely unpowered but I put it out in the sun for three days, the first day I received it at 11 Put it in the sun and take it orally at 6 p.m. and put it under a fluorescent light overnight to turn it off, then I repeated this for 3 days. I have a Qoolteck amber flashing light with a switch and I can honestly say they are brighter. They have updated how long they will last. A very nice bright flashing light is currently used on the construction site. You can see very well how it bounces off nearby objects. I highly recommend it. I'll keep you updated as time goes on, we're approaching a turbulent time of the year here.
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