Brake light blinker, four flashes then solid. Safety Flash Light Alert. Universal

I really like having the ability to easily adjust the flash speed. During the installation, I kept having problems maintaining connections. It’s not the fault of the unit. I’m very tall and was trying to work under the sloping back window of a Crown Victoria Police Interceptor while kneeling sideways on the back seat. The quick-connect devices supplied with the flasher kept releasing wires because I couldn’t reach the angle I needed to fasten them tightly enough. When I switched to standard twist-type electrical connectors, everything went smoothly.