Magnetic Beacon Light Wireless, Class I Portable 12-24V Rotating Warning Lights, Rechargeable Amber Flashing Strobe Lights for Vehicles Trailers Trucks Tractor Bus Forklift Cars

The beacon is very bright and readily visible even in daylight. The magnetic base and suction cup can be attached to my car top securely. The rubber flap sticking out from the cup allows the beacon to be detached from the cat top easily at the same time. The beacon can be charged up quickly with the from the 12 V cigarette lighter jack in the car as indicated by the power LED turning from orange to green. The overall build looks solid.

light is bright as advertised. coverage is good. build is good. battery life yet to test fully.

I've spent most of my life (I'm 64 as of this review) around vehicles with flashing lights, be it the amber lights on the family construction vehicles, or the red and white lights on the ambulances I drove for 14 years. When these folks claim that this light is SAE Class 2, they aren't kidding. It probably exceeds Class 2 by a comfortable margin. The fact it does this without a cord, just on internal batteries, is remarkable. There are some issues with the unit though. For one, and I admit mine could just be defective, the tiny indicator light near the power switch that tells you the charging status never shuts off, and eventually drains the battery even when the unit is off. I tested this on mine to see how badly it drains the battery by charging it and then leaving it unplugged for 24 hours, then seeing how long it would run. On a fresh charge, I got 5.5 hours. If I let it sit 24 hours after charging I only get 3 hours of runtime. I have a feeling that every time I'm going to want to use this I'll have to charge it first. I've also found the magnets to be fairly weak, enough so that I would not trust this at the rated 60MPH. Personally, I wouldn't trust it over 40, which is a shame. The magnets need to be much more powerful. A unit like this, rated Class 2, should be able to handle 65-70MPH typical highway speeds. Edit: It looks like I was correct in what I suspected. This unit simply will not hold a charge longer than about 6 days. After that it's so dead it takes many hours to fully charge. Mine was totally dead when I needed it at 0200 this morning and was put on a regulated 13.8vdc bench power supply for charging at that time. It is now 11 hours later and the charge indicator is still red. It is unsafe to leave batteries charging 24/7 and this is useless if you have to charge it for half a day before you can use it when you need it. Edit 2: I was contacted by the manufacturer shortly after posting my original review and they offered not only a full refund but also a free replacement unit. That unit arrived today and I've tested it and verified that it is working correctly.

Good safely light Fully charge will last all night I wish it come with a wall charger stead of the car charger

Super bright, and it lasts at least half a day. I'm always on the road going from jobsite to jobsite, and I want the advantage of an easy way to take on and off safety lights, this is it