Review on Muzata 40Pack 3.3ft/1M Black LED Channel System: Enhance Lighting with Milky White Cover Lens, Aluminum Profile Housing for Strip Tape Light Diffuser Track Segments - U1SW BW 1M, LU1 by Prince Ruffins

I obtain Many of these we have already used on several projects and designed several 3D printed parts to work with including the parts for the pavilion in the photos. These channels are well made and evenly cut to 1 meter and all arrow straight. The diffusers also snap firmly into place, so no complaints there either. The only minor complaint is that I often find fine metal dust (not like shavings) in the channels near the ends (from manufacturing). There isn't enough dust to cause a short, but I vacuum them anyway and then give them a good wipe before installing. I didn't find any burrs on the ends and they appear to be well finished. They are easily cut with a hacksaw with a simple miter box (or of course with a metal disc on a miter saw). I would always buy more if I need them for other projects. If you plan to use them in series (butt) I would recommend buying "Muzata Extension Connectors for U1SW U101 U Shape Aluminum LED Channel" which will connect the ends perfectly. The smaller clips in this kit don't really work if you're trying to seamlessly stretch the LED channels. Another tip is to stagger the seams on the ducts and diffusers so they don't line up.