The Lanrui M191 Universal Switch Clip is a professional mobile phone repair tool designed for motherboard power supply and current testing. With universal compatibility, it supports all iPhone series models and all non-encrypted Android phones, eliminating the need for multiple dedicated tools.

The clip enables direct phone current testing without disassembling the motherboard, greatly simplifying the repair process and reducing the risk of component damage. It features a dual-mode switch design, allowing users to choose between direct power-on mode and automatic power-off mode, with a built-in LED indicator light to clearly show power status and help quickly locate motherboard faults.

Equipped with positive/negative terminals for stable contact with motherboard power pins, it ensures reliable current transmission. Its compact, lightweight design makes it easy to carry for on-site repair and workshop use, and it is widely applicable to mobile phones, tablets, motherboards and various electronic devices. This tool is an essential accessory for professional mobile phone repair technicians, streamlining troubleshooting and improving repair efficiency.