Review on 🚦 Enhance Road Safety with the Waterproof Stop-Alert WigWagger 72 Electronic Wig Wag Alternating Flasher Relay - Universal Emergency Police Ambulance Car Controller LED Strobe Light Box Kit by Tom Ball

I haven't found any problems with this flasher unit. I actually paired this with two sets of 10 LED marker lights. A set of amber and a set of blue. I installed the lights in my truck's grille and wired them to alternate color. I also installed a 12 to 24 volt converter to brighten all the lights. And yes, this device works on both 12 and 24 volts, like the flashlights I've bought. The entire setup cost less than $60 minus the extra cables and connectors I needed. The wiring instructions are simple, the control box can be installed almost anywhere with good double-sided tape, and it works well. If you are looking to make your own emergency/warning light kits/poles this would be a great way to do it at a fraction of the cost of many commercial kits.