10-Pack 6.6ft/ 2Meter Plus-Size U Shape LED Aluminum Channel System with milky Cover, End Caps and Mounting Clips, Aluminum Profile for LED Strip Light, Special for Philips Hue Strip

Excellent quality. Would like to see this in smaller quantities

Good for my project

I purchased the 10-pack of 6.6 foot lengths for a garage ceiling lighting installation. Worked well for my application with a few caveats which aren't deal breakers at the price point of $72. It came with a full set of both "with hole" and "without hole" gray end caps. Though the color wasn't quite like mill finish aluminum, it was fine. I used the closed type on both ends for a clean-looking installation, routing the wires into the ceiling after drilling a hole through the bottom of the channel. For each of my three 16.5' fixtures (198.5" total, after accounting for end caps and hole for wire), I used about 2.6 of these to get that length; good enough for the space, and also ideal to accommodate one full strip of LED without the need to cut the LED strip (most strips are 5m/16.4ft), and also make servicing it (replacing the strip) in the future easy. The LEDs I used were double-wide strips (JOYLIT 24V LED Strip 16.4ft Dual Row 683LM/FT Ultra Bright), which fit perfectly. However, I read that the heat those strips produce is significant. The major flaw with this aluminum channel is the VERY thin bottom which I believe is insufficient for appropriate heat dissipation from the point/spot of each diode. So I ordered 5/8" x 1/8" thick (8' lengths) aluminum bar stock from Grainger (could also get it from McMaster-Carr) and used 3M transfer tape (double-sided tape) to bond the channel to the aluminum bar. I overlapped the channels/bar stock/diffusers to minimize seeing the gap between them and make the entire assembly more structurally sound. Assembled each unit on the floor into a complete fixture, snapped a chalk line on the ceiling, and installed. Ran low voltage lines (12AWG) in attic to 500W power supply. For the first fixture I tried drilling holes through the bar+channel with countersink and screwed it directly into the ceiling to avoid the appearance of clips. After that first one, I decided the clips were fine and less hassle, and so used them for the other three fixtures, spacing them about 2' apart. Initially, the gap between the channel pieces was seamless, indiscernible to the eye unless you were really looking hard. I finished the installation and turned the lights on for a while. No functional issues. I touched the channel with my hand to test for heat, and I can say it got quite hot. Satisfied with the install, I then turned the lights off and came back later and turned them on again. Now this time I could clearly see light coming out from the sides of the channels. Apparently (and I should have anticipated this), the aluminum had expanded length-wise when it heated up, essentially pushing the adjacent channels apart slightly from their original anchored position. When off and cool, the aluminum shrank back to its room temperature size, leaving about at 5/128" gap--enough to see when the lights initially turn on, but not when off. But, as the lights heat up the fixture, those gaps disappear. Now I suppose I could have engineered a thin piece of metal to put inside the channel at the edges, but it's not that architecturally critical--it's a garage after all. And so I'm very pleased with this product given its price point. All-in on the installation providing about 40,000 lumens of even lighting in a roughly 20' x 20' garage (three full 16.5' fixtures and one shorter ~10' fixture) was about $350 (channels plus four LED strips, one 500W 24V power supply, additional aluminum bar stock and incidental wiring). And there was enough extra material left over for a few short under-cabinet lighting fixtures too. One final note: Time will tell if the diffuser plastic material remains true to color or whether it yellows. Hopefully not.

Excellent & Consistent product quality; delivery on time

Once they are adhered to the wall and the LED's are adhered in the channel-- I don't care what anyone says - IT IS IMPOSSIBLE to get lens in ... for that -- ONE $&@#%! star ... was a BIG problem ... BIG AND IMPOSSIBLE.... we ended up pushing them in against the led strip