SD16 2 Pin Male-Female Waterproof Power Connector Pair npn 1MM is a 3-pin female

1MM is a 3-pin female DC power connector jack socket

This switch is designed to be conveniently mounted on printed circuit boards to provide various ranges of input to the electronic device

It can be used as a Single channel wireless switch

It's a 7 Pin Relimate Female to Female Connector - 2

SD16 2 Pin Male-Female Waterproof Power Connector Pair npn 1MM is a 3-pin femaleIt's a SD16 2 Pin Male Female Waterproof Power Connector Pair. Protected against solids & liquids, provide a secure and reliable waterproof connection in the harsh environment. For indoor and outdoor use. These connectors are widely used in communication electronics, instrumentation, underwater work, high temperature work, aviation field, ship field, construction field, engineering field and other outdoor places. Plastic waterproof IP68, tight