Welcome to our shop! This LED light DIY kit is made with a printed circuit board that adopts FR-4 military-grade A material sheet. This ensures a strong tolerance and stability of parameters. The use of high-quality materials contributes to the durability of the product. The components' parameters are directly printed on the circuit board, making it convenient for you to solder without referring to a circuit diagram. The enlarged and tin-sprayed pads make soldering easy and prevent the pads from falling off after repeated soldering. The LED light DIY kit is not prone to spontaneous bending, making installation simple and not requiring complicated operations. With stable and reliable impedance, you can use this LED light DIY kit with confidence. Item Details: - Item Type: LED light DIY kit - Power Supply Voltage: 4.5-5.5V - Printed Circuit Board Size: Approx. 11.1 x 12.7cm / 4.4 x 5in - 550 x White Blue-Lighting Super Bright LED Light - 1 x Printed Circuit Board - 1 x Resistor Capacitor Accessory Box - 1 x USB to DC005 Cable 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.