This is a light weight, high energy density polymer lithium battery. It outputs a nominal 3.7v at 980mAh, including built-in protection against over voltage, over current, and minimum voltage. It comes terminated with a standard 2-pin JST connector-2.54 mm spacing between pins.
Please do not attempt to charge these with anything but a specialized Lithium Polymer charger.
The Universal 4 Pin Buckled Cable is made for the Grove System to connect all of the Twigs to the Stem - Basic Shield or to other Twig compatible boards for quick prototyping. As a lot of users ask for different length of cables, so we made the 5cm,20cm,30cm,40cm,and 50cm cables for different applications.
Digital RGB ring is an intelligent light source consist s of WS2812B RGB LED with Integrated Driver Chip. The control circuit and RGB chip are integrated in a package of 5050 components.
This LED ring is a full-color that external control for each lamp beads. It with high brightness, can achieve effects of full color running water, chasing and scan.
This is a Lightweight, Frameless and Clear safety glasses, be used for protecting eyes, preventing particulates, water or chemicals from striking the eyes. We suggest you to wear a safety glasses when soldering or doing other DIY works.