Installation instruction: https://img.staticbg.com/file/products/20180110030354HBL-22-heart-shaped-breathing-LED-kit-.pdf
Feature:
Kit model: HBL-22
Working voltage: DC4–6V
PCB size: 50.7 x 50.7mm
Package weight: 23g
Color: Blue LED
Speed adjustable
Speed adjustable
Package includes:
10 x DIY blue led kit