Very bright, I use them for decorative lighting. They’re plugged in to a regular wall socket that’s operated by a light switch and they maintain the same brightness setting when I turn the switch on.I encourage anyone who wants to add lighting options to buy these. I have bought multiple set and have them in every single room if my house. And under my kitchen cabinets. You just wave your hand to turn them on and off. Absolutely my most favorite amazon purchase. EVER!I am updating my lights inside of my sailboat cabin, These light are excellent for my purpose, The marine version on LED lights Cost lots$$$$, but these are working great, although they meant to be used under cabinet, but they can be used any purpose, I have 4 zones, which i can turn on /off and control, I have bought 3 (six packs) and one 12pack, for my boat, I am using the pucks and no power supply, since I am using 12V battery system in my sailboat, so no need for them. they look compact, and modern and they are easy to install. I like the dimmer option, but to be honest I wont be using that option since the light wont use too much battery anyway. The only thing if possible to add would be bluetooth option and app for the phone which can be turn on/off the lights.I was pleasantly surprised with the quality of this product. The lights are made of a chrome-like metal (instead of plastic). The switch control is of equally high quality. The installation clips are easy to install and they actually hold the wire tightly in place. All in all, a good purchase for a good price. I bought a set containing six lights for indirect lighting in the laundry room and I'll be ordering the next set when the new kitchen cabinetry arrives.Nice set. Easy to install and looks great. Super slim design easily hidden!Puck lights arrived promptly and as described. However, when the base is unscrewed for mounting, the threads tends to bind when attempting to re-attach the base, typical of some grades of aluminum. In addition, wires for stringing the lights cannot be shortened leaving an unsightly "bundle" of wires that cannot always be hidden. The availability of an assortment of wire lengths connecting the pucks would clearly be desirable.we needed under shelving lights for builtin desks we are getting built. I love that these are dimmable but bright enough you can see what you are doing on the desk. Also, like that they are on a switch so when we sit we can flip them on. We originally bought lights that were controlled with a remote. Every time we turned the lights on the tv (mounted between the two desks) would also turn on so these work way better for our needs.I'm really surprised these lights have a machined aluminum case. I expected plastic. The lens side of the case unscrews so that you can mount these with screws or you can use the 3M adhesive pads provided. Some people's reviews are unfair or incorrect. One reviewer said you cannot hide the wires and another reviewer said you cannot get rid of or hide the end light's connector wire that is unused. Firstly, the wires exit a slot from the bottom. You can drill holes in your cabinet and feed the wires through. The slots are designed so the wires can go through the side of the light or out the bottom, completely hidden and the lights mount perfectly flat. Regarding the end light. With the lights powered off, simply cut the wire. It is wise to cut one conductor a little shorter than the other. Make sure there are no strands. Or cut them off from the internal pc board. That's what I will do. One person dropped one star saying it has no motion sensor. This unit does not and their ad does not mention it so don't buy this if you're going to criticize it for not having motion sensor. Another person complained the wires are too long. I would complain if they were too short but too long? Just bundle the excess wire, or cut and use merretts or solder and heat shrink. How would anyone know whether you want to mount these lights 6 inches or two feet apart? Proper under cabinet lighting usually means there is a false bottom under the cabinets for hiding the wiring so it does not matter how long the wires are.The electronics are very well made. I have an electronics background and am impressed with the wiring and circuity. I opened up the dimmer so I could solder a thin 24 gauge 2 conductor wire to the momentary on/off switch so that can mount an external cabinet switch to to dart backboard I am building. Again, the electronics are excellent. Finally, the lights are a bright warm white color and the dimmer works perfectly. The dimmer does remember the last dim level but the adapter must remain powered up (plugged an). The only tiny negative issue is that if your power goes out, the lights go to 100% when the power returns and you turn them on. A non-volatile dimmer memory would have been better but these lights are a 9/10 in my opinion.Used for under-cabinet kitchen lighting. Easy to install and connect. Very bright, good dimmer switch. Adhesive on pucks is good so far (after 2 months). Adhesive on switch came loose, probably due to touching switch regularly and steam from the kettle. Fixed with a drop of crazy glue. Adhesive was a temporary thing, in any case, until we were sure the light/switch placement was going to work. Mounting screws are included. Very happy with these lights.This set provided the lighting I needed in my food prep area and also serves as a great nite light. I like the on/off/ dimmer switch as it feels solid and should last a long time. I used the adhesive pads to mount them under the cabinet so time will tell if they stay stuck there.So easy to install and love the effect- the adhesive works perfect. The product itself is very well made with the stainless steel rim on the lights.I also love the fact that I can dim them when I don’t need the full exposure of the lightGood product. Works well and discreetly fits under a cabinet. A bit frail, but works very well. Great price.I used the adhesion option but it fell off after a couple of days