Giới thiệu Mô-đun đèn Led 12V 4 số chất lượng cao
1. Onboard high-precision voltage detection chip and power supply regulator chip
2, onboard 4-digit power indicator LED light, divided into 3 colors, red, yellow, yellow, green represent 20%, 50%, 80%, 100% of electricity
3. Reserve one battery detection interface and two mounting positioning holes
4, PCB size: 22.2 (mm) x 17.2 (mm)
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