2Mos Pasta 5-15 String 21V Protection Board Circuit Power Bank Charger Module

Material: PCB Packaging: 1pc Size: 40 * 50MM Specification: 21V Small and cute, easy to carry, with wide applicability. Adopting high-quality electronic components for durability. It can easily connect to other electronic components for more complex circuit design and combination. Note: Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding. Due to the differences between different monitors, the images may not reflect the actual color of the item. Please refer to the actual image received. Thank you very much.