Descriptions: Plastic shell, 2 wire connection, is suitable for 9V batteries. Hard plastic I-type connector. 15cm stripped and tinned leads, 1 red and 1 black for easy identification and soldering terminal connector for 9-volt battery or for DIY projects Note: Battery is not included here ! Note: Please do not separate, maintain, or the product.The wires are thin, and the structure of this product is only fit for very small current load, DO NOT connect it to a load that will cause large current, stop using this product if the wires are hot.