For what it is, its a bright light day and night. I do caution work and every so often block off flooded roads and assist with car accidents. This light did the job in the front windshield. The suction cups that come with it can't hold up the light, do I replaced mine with 2 3 ring suction cups that you could by at Walmart. Though, mine fell out out of the windshield and the 3 white leds in the middle got stuck on steady burn (not a pattern option for some reason) no matter the flash pattern. I kinda wish that the casing was made out of light weight aluminum. But over all, I would recommend this product, it really is a good light and extremely bright for the price. I've been told the by police, that they could see it 3 miles+ coming down the opposite side of the road.