Bests & Worsts Reviews from Amazon

I'm writing this review for both the 3000K and 5000K versions that I have purchased here: The item does the job as I expected. Bright light on both with 1,600 lumens from these 20W (each) emitters. The shell feels of quality (metal) and everything seems well designed with sleek contours. These floods install to an approx. 4 inch (4.2 inch or so) round electrical box that you should already have, along with the house wiring. Middle large screw secures them in place (instead of the 2 little perimeter screws on my old flood lights. Neoprene cover over the screw head is a nice touch and completes the look. The instructions are adequate and the installer needs to have a basic knowledge of installing basic electrical fixtures. A handyman quote me around 1 hour per to install. I was just curious. Both the 5K and 3K kelvin do a great job, but for areas where I'll be in the evenings and nights, I selected and prefer the warmer ones (3000 Kelvin). For the front of my house I also went warm. For the lights shining out into the woods, I went cold industrial lights. 3000 Kelvin is warm without going into that yellow-street-light that's so tiring to the eyes. The one feature I don't like it that upon selecting them to stay on all night (on-off-on toggle within 2 seconds), they will automatically turn themselves off after about 8 hours. In reality, I would have done all warm. I'm enclosing a photo comparing the two, but I understand this is hard to do with a photo. If in doubt, I'd select warm. It is closer to what I'm replacing (incandescent flood lights).