2ft LED Ceiling Wrap Lights - 1,600 Lumens - 4000K - Slim Design - White Finish

I wondered about the size of the round LED lights. Since I haven't installed them yet I can't tell if they bring adequate light as I expect it.

I wanted to give this lamp fixture a 4.5, but Bees only allows whole number ratings. My application for this lamp was as an Over-the-Sink under-counter lamp. The mounting location was on the horizontal bottom of an existing shorty cabinet that did not have a built-in electrical box for mounting the fixture. Rather, the existing dual fluorescent fixture was fed by 14-2+Ground Romex coming through the wall just below the cabinet bottom - not to code by any stretch.
This LED fixture assumes certain mounting and wiring conditions will be available. It wants to mount at a standard lighting fixture steel or plastic box and that the internal connection wire will feed up through a hole central to the mounting box outline with the ground wire that is secured to the fixture with a top-side screw that is also within the box outline. This fixture also has an unusual way of guiding the light coming from the 1-1/4" (32mm) wide COB (Chip on Board) strip that runs the length of fixture's interior. The strip holds down a plasticized paper shade that reflects and guides the light coming from the COB strip and that shade is folded so that it tucks into the edge of the metal part of the fixture at the bottom. So, you must actually pull the folds out from the fixture edges and flip out the shade to be able to get to the 4 mounting screw holes that would connect it to the fixture box. The fixture also has two other slots cut into the fixture top (the mounting side) that might be able to be used to attach it, but they are so close to the COB strip, they are really not useful for mounting.
In my mounting application, I had to drill a half-inch (13mm) hole into the side of the fixture to run the existing Romex into it (with a rubber grommet at the hole), pull the sheathed AC feed wires into the fixture body and remount the ground wire from the top of the fixture to the top interior using the same threaded hole. This allowed me to mark where the corners of the fixture would be when centered in the cabinet bottom, flip out the shade, hold (with help) the fixture up to the cabinet bottom and mark the location of the 4 mounting screw slots that would ordinarily be for the screws that would go into a standard fixture box. By doing so, I could use some #8 x 1/2" stainless steel (humid location) pan-head (Phillips) sheet metal screws to mount the fixture after drilling pilot holes where my marks were and feeding the Romex cable into the fixture and connecting with three wire nuts. I also put washers under two of the three mounting screws for the COB strip to pull the screw ends away from protruding so much above the top of the fixture to get a more flush mount to the underside of the cabinet.
This fixture has no internal switch, but it has room for mounting a 120V rocker switch at almost any position along the sides, by cutting a rectangular hole to size using a Dremel-type rotating tool with a cut-off wheel or diamond cutting wheel. You would then mount the rocker switch into the hole and wire it up as needed.
Overall, I thought the light guide shade and the assumption that you would always have a fixture box to mount into made this fixture somewhat limited in mounting flexibility, but as my story above shows, with a little thinking and rejiggering, it can be mounted in ways different than the maker intended. Once mounted, you tuck the shade folds back into the fixture edges and slide the frosted acrylic shield into the fixture edge and position it properly.
The amount and quality of light coming from this fixture after installation is just awesome. I chose this fixture for the large number of rated lumens at 1600 (equal to two 60 Watt incandescent bulbs) and the color temperature of 4000?? Kelvin. Each of these features were superior to the fixtures available in my local big-box stores that I looked at. None had the lumens and all were at 3000??K or less. The lower color temperature produces a reddish-orange light similar to an incandescent but is not bright and effective illumination. The higher color temperature produces a bright white light that is not too blueish and is close to sunlight. So, this fixture creates a bright white light and good color rendition, while being less expensive, even after shipping was added, than the fixture lamps that were available locally.
Sorry for the lengthy review of something so trivial as a lighting fixture, but as an engineer, I wanted others to know about mounting possibilities and the excellent quality of light that this fixture gives so that you can make an educated choice.