YUNBO LED Strip Lights Narrow Width 4mm Warm White 3000-3500K NO Waterproof 12V Flexible LED Tape Lights Cuttable 600 Units SMD 2835 LED Lighting 16.4ft/5m

Nice lights. This was my first use of 4mm width LED strips.I was surprised that YUNBO LED Strip Lights included double the qty of LEDs you see on an 8mm at this price, 600 LEDs per 5 meters vs 300 LEDs per 5 meters. They provide a lot of illumination.So how did they perform:1) The color tone was just what I expected for a 3000 to 3500k warm white2) The width of 4mm made the install possible as 8mm was way too wide for this install3) The copper solder points are really small because of the extra LED's and 4mm means they are extremely close together. Solder is likely your only option if you need to add leads. Make sure you have a narrow wire if you need more than the provided leads.4) I used a 12V LED dimmer and the strip dimmed with no problems.The adhesive was good with two challenges.1) There is double the weight per meter and have the adhesive vs 8mm width. Its just the way it is.2) In my case the finish glossy and the surface not perfectly flat.Overall the lights went on well, but the heat of the lights softens this type of adhesive and it would pulled away.The solution was a couple of drops of clear hot glue along the edge between lights. The copper strip will expand when it warms up so make sure you lay it down as flat as possible to limit the affects of expansion.The package included the 5M of lights with two un-terminated wired ends and one connector you can put on ether end to hook it up to a standard 12V power supply.I will definitely per purchasing more of these. The 4mm width is going to allow more installation options in tight spaces. I see they have a cool white strip as well (B07K18HS94). I will have to try it. Hopefully it is not too far into the blue spectrum.