4x4 array of WS2812 RGB LEDs (AKA Neopixels), 5V logic and power, 30x30x3.3 mm size. There is one IN and one OUT pin, so matrices can be chained together.
8x8 array of WS2812 RGB LEDs (AKA Neopixels), 5V logic and power, 66x66x3.3 mm size. There is one IN and one OUT pin, so matrices can be chained together.
This is 1 meter long LED strip with 30 WS2812B RGB LEDs and you can control each LED individually - 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 strip is made of white flexible PCB material (not for outside use), it's sold per meter (max 5 m in a piece).
This is 1 meter long LED strip with 30 WS2812B RGB LEDs and you can control each LED individually - 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 strip is made of black flexible PCB material (not for outside use), it's sold per meter (max 5 m in a piece).
Simple LED lighting board with 12 white LEDs, can be powered via micro USB or by soldering wires to the pads. 5V working voltage, board dimensions: 30x52 mm.
Simple LED lighting board with 20 white LEDs, can be powered via micro USB or by soldering wires to the pads. 5V working voltage, board dimensions: 50x52 mm.