
This built-in rotating beacon quickly flashes the brake lights 3 times before they illuminate. Once activated, it will not blink again until about 5 seconds of inactivity have passed. This means that when braking, it doesn't always flash between quick brake pedal presses, so as not to irritate the following cars too much. I think it was designed and tested to have the right amount and timing of blinking. The built-in pigtail is designed for permanent installation as the female end of the receiver has threaded mounting holes. I have a nice built in OEM dual 4 and 7 pin connector on the back of my truck. I wish this was available in a more compact format. Maybe it would be better if they could just plug the electronics into the connector. Or if they had a built-in splice box. You can disconnect the cables and ends from it and try to align the command module. This is not convenient for installation, but is doable for anyone with experience and skill in low voltage wiring. Alternatively, I could install this on my trailer, but only this trailer will have strobe stop effects. There are no batteries to look out for. It's pretty much plug and play with little cable management. This is a great idea, it just adds a subtle strobe effect to increase awareness of the brake lights. 5 stars for a decent product.

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