Description: This circuit is composed of 37 pcs LED (light emitting diode). The 37pcs LED divided into four groups, and each group has different flashing frequencies, when four groups flash together. This item looks like a little Christmas tree Features: 1. Manual: Click here to open (For reference only, if there is any difference, it can be adjusted according to the actual situation.) 2. Simple and practical 3. low power consumption 4. It uses integrated circuits for driving 5. The parts , and the line is simple and easy to understand. 6. External wiring kit: with pluggable plug for easy replacement of parts at any time and conducive circuit debugging. 7. Size: 60*60*136mm 8. Working voltage: DC4.5-5 v 9. Power supply: 3 section AA battery or USB charger Package Included: 13*Resistance 37*LED light(RED/YELLOW/GREEN) 1*Switch 1*Power socket 6*Capacitance 6*Triode 2*Screws 1*USB cable 1*Battery slot 3*Circuit board
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