An unbelievable 144 individually-controllable LED pixels on a flexible PCB. It's completely out of control and ready for you to blink. This strip has a black mask, and an extra heavy flex PCB.
These LED strips are even more fun and glowy. There are 144 RGB LEDs per meter, and you can control each LED individually! Yes, that's right, this is the digitally-addressable type of LED strip. You can set the color of each LED's red, green and blue component with 8-bit PWM precision (so 24-bit color per pixel). The LEDs are controlled by shift-registers that are chained up and down the strip so you can shorten or lengthen the strip. Only 1 digital out pin is required to send data. The PWM is built into each LED-chip so once you set the color you can stop talking to the strip and it will continue to PWM all the LEDs for you.
All your high-density LED dreams answered, yet there are a few things to watch for.
The strip is made of flexible PCB material, you can cut this stuff pretty easily with wire cutters. Solder to the 0.1" copper pads at the ends and you're good to go. Of course, you can also connect strips together to make them longer, just watch how much current you need! We have a 5V/4A supply that should be able to drive 1 meter (depending on use) and a 5V/10A supply that can drive up to 2 meters (depending on use) You must use a 5V DC power supply to power these strips, do not use higher than 6V or you can destroy the entire strip.
They come in 1 meter strips with a 2 or 3-pin JST SM connector on each end and separated power/ground wires. These strips are sold by the meter! There is a join in the middle of the strip and the LEDs are not perfectly spaced at that point - it's just a tradeoff with the ability of the flex PCB maker and density.
To wire up these strips we suggest picking up a 2.1mm DC jack to wire in so you can connect one of our wall adapters to power it. You can connect to the input side with any sort of wire. You'll probably want a 3-pin JST set to turn it into a quick connection.
Our detailed NeoPixel Uberguide has everything you need to use NeoPixels in any shape and size. Including ready-to-go library & example code for the Arduino UNO/Duemilanove/Diecimila, Flora/Micro/Leonardo, Trinket/Gemma, Arduino Due & Arduino Mega/ADK (all versions)