Great product and super brightGreat price and fast delivery! I purchase a second set for a co-worker! Very bright lights!We like. The brightness & selectable patternI’m a volunteer firefighter and ordered this for my back window. The light is bright and easy to see even during the day, and I have very dark window tint. I’ve had them installed for a couple months now and the suction has held up as wellTwo minor issues. It is not 36.5 inches long but 34.5. It was slightly shorter than the light I was replacing. Not a serious issue for me. Second, for some reason they put a plug-in connection in-line with the power cord, which caused me to re-route the wiring to hide the white connector attached to black wire. It worked, but again not a big deal, just a little more work. I did not use the suction cups, as I had a velcro mounting already set up for the previous light and used that.When I received the item, it was missing the suction cup mounting kit. I immediately contacted the seller and they responded right away. The requested my shipping address and said they would send the suction cups. I received the suction cup mounts about 10 days later and the lights were installed in the rear window of a large SUV. The supplied wiring was too short for my vehicle, but adding a sufficient amount of 3 conductor cable that I already had was quick and easy. The lights are very bright, even when viewed through the darkened rear hatch glass of my SUV. There are many flash patterns to choose from and the set pattern remains the same after the lights are powered off and then back on. The lights are still working well after a month or so and I'm very satisfied with how the seller promptly resolved the issue with the missing parts.It keep coming off the back windowBar is good adds target value but needs better suction or bigger suction cups to hold to the rear window.