Used when the head wire of automotive peripheral is incorrectly connected. plug can be used to convert and negative LED outdoor lights, solar-powered charging cables, mobile power to car small household appliances, battery car conversion power, one-time molding.The outlet polarity of different brand solar panel chargers maybe different. And the polarity may be reversed when the solar panels connect with the other brand quick connection extension cable,solar charger regulators,and DC power kitThese plugs would be very easy to convert the reversed polarity.The polarity reversed adapter is to connector, it is compatible with and the other brand connector wires.This adaptors can be connected with 12V/24V DC . Do not use to make connections exceeding 20A(current).This connect plug would be the easiest way to make the reversed polarity for to connectorProduct name: adapterLength; 4.7 cmCurrent: 1-30AVoltage: 1-36VWire diameterInput interface: 4.5mm male and femaleOutput interface: 4.5mm male and femaleProduct weight: 9gColour:As shownMaterial:Plastic + MetalPackage Contents:10 x Polarity Reverse AdapterOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.