1. Specification: outer diameter 5.5mm, inner diameter 2.1mm hole (needle) 2. Material: copper, plastic 3. Weight: about 8g/piece 4. Purpose: 12-24V centralized power supply, suitable for all kinds of camera gun power supply tail power supply, LED light display screen, light strip power supply centralized power supply 5. Features: use high-precision abrasives to shape, the appearance is not distorted or deformed, the size of the international standard power interface, the terminal with screws, and the elastic metal card, the contact performance is superior, and the arc spark caused by poor contact is avoided
