Colorful Heart Shaped LED Soldering Welding Practice Kit Dazzling Single Chip Water Lamp Making LEDs kit Electronics Science Kit for DIY Training

This diy kit uses 50pcs leds to form a pattern of heart. The change of led is controlled by MCU. The leds change different colors with different flashing modes. It is a good choice to decorate your living room, bedroom, office with this beautiful light. Installation steps 1. Solder the single-chip microcomputer, and weld the single-chip microcomputer with the notch direction of the single-chip microcomputer facing the direction marked with the notch mark on the circuit board. 2. Solder the LED, the long leg of the LED is the positive pole, facing the position with the positive mark on the circuit board. 3. When soldering LEDs, first solder one foot, then cut off the extra feet, then assemble the crooked LEDs neatly, and finally solder all the LED pins. 4. Welding switch. The switch is soldered to the solder side of the circuit board. 5. Solder the battery box, the red line is the positive pole, facing the positive position of the circuit board, and the black line is the negative pole. Then fix the heart-shaped panel with screws and install it. 6. Install the rear panel bracket. 7. Finally, install 2 AA batteries. You need to prepare them by yourself. Package List: 1 * Heart-shaped led diy kit(battery not include). 1 * Instructions Satisfaction Guaranteed and Easy Refunds If for whatever reason, you decide you are not satisfied. You can easily and quickly contact our helpful customer support and get an easy refund.