I purchased the up/Down indirect light..

The product is of low Quality and came with bents all across edges and surface. And the edges are very sharp be cautious while installing.

As other reviewers stated the mounting brackets provided are very cheap and doesn't fit well, they fall off easily making the installation look loosely installed and can get easily disconnected from the wall ' the screws provided are very small and doesn't' hold the product.
Instead get a Gorilla Double sided mounting tape and save yourself time as they hold very good.

The Light diffuse cover which were provided doesn't fit back after installing the led strip. I had to remove them since they fit back...

I am totally disappointed with this product and the only reason I didn't returned was the hours of time spent to install it and make it work.

In the end they really look good and made the wall accent.

Fantastic channels that are machined well, with effective diffusers, but the mounting clips for these channels are an absolute joke. You're much better off with clamps and an adhesive unless you're forced to make the installation temporary. For what is essentially $7.50 per channel piece, I would have expected far better mounting options than the channels that were provided.

In my case, I used Gorilla Glue underneath my handrail runner in a stairwell, and the result turned out very well. I'd buy these again in a heartbeat (but discard the clips immediately).

Haven't installed them yet, will get around to it someday... Review is based on packaging and material quality which are both very good. Solid build aluminum, flawless diffusers, Includes plenty of mounting hardware. No problems I can foresee, they are what they are and nothing less. I would prefer they were less expensive but I am cheap. I will update if I have any issues.

I successfully installed these channels for my undercabinet LED lighting. Overall, the product worked well for this purpose. However, there are several things which I had to learn along the way.

1. As noted by many reviewers, it is easy to cut the channel with a regular hack saw. I ended up cutting it together with the "glass" which is a soft plastic. Aluminum is soft and is very easy to cut.
2. The screws are a good length for 3/4" face frame of the cabinets. They might be a little too long for 1/2" cabinet bottom, one has to be careful.
3. The height of the channel is just right for the reveal under the cabinet. When installed under the front side, they illuminate the under-cabinet space nicely and at the same time do not stick out, so you can see the light but do not see where it comes from.
4. The mounting clips work in a little weird way. They are shaped at about 75-80 degree angle, so you spread them a little when you click the channel into the clip. They grab the channel by the edge, but there is no positively defined groove in the channel itself. When the channel clicks into the clips, it sits nice and tight. When it does not, it is hard to figure out visually what went wrong.
5. A minor deformation of shape of the channel (e.g., if it is twisted slightly) could lead to a problem with locking into the clips. I had this issue with one of the lights. I moved clips, changed clips, nothing worked. I ended up removing the LED strip from that channel and moving it to the other one. After that, the problem was resolved instantly.
6. End caps do not have holes for wires, you need to drill them as needed.

With this, if I had to do it again, I would cut channel to length, would install the clips, would make sure that the channel locks into the clips easily and firmly, and only after that would install the LED strip into the channel.

The advantages of using this channel are three. First, Al channel acts as a heat sink for the LEDs. LEDs do not generate a lot of heat, but they do generate some, and proper cooling is good for them, good for the glue which keeps them in place, and good for the cabinet. Secondly, plastic opaque cover diffuses the light (fewer reflections from polished surfaces) and protects LEDs from steam and grease common in the kitchen. Thirdly, angle channel directs light from the front edge of the wall cabinet to where it is needed, i.e., under the cabinet space.

I ended up installing LEDs from mid brightness range, 4.5 Watts / foot. I found that this provides good level of illumination, not too bright, but not too dim either, from one line of LEDs under the cabinets.

Overall, it is not a sophisticated high end product, but it is adequate for the purpose. Some of the aluminum channels might not work, try them before installing LEDs. Clips work but better defined locking mechanism would be desirable.

If one wishes, it is possible to drill holes through the channels and mount them with screws prior to installation of LEDs.

And yes, for a new cabinets installation, it is much easier to install channels before mounting cabinets on the walls. It is so much easier to install them and route the wires while the cabinets are on the floor, upside down.

These are great. I installed a firing strip along the base of my cabinet and then mounted these channels to the back side of that using two-sided tape. Love the lights and the hidden channels.