Features 1、Widely used in circuits that require electronic switches, such as switching power supplies and motor drives, as well as lighting dimming. 2、Can only be used to control DC circuits, such as DC LED screens, etc., not suitable for AC circuit control. 3、In the extreme case, the MOSFET switch can be used to control a 100V / 33A DC circuit, but the control of a small DC voltage is recommended to be not less than 9V. 4、In the circuit connection, the wiring of the controlled end is a little more troublesome. 5、An electric building block switch, 1-channel switch, great tool to control different circuit blocks. Specification Condition:100% Brand New Item Type: Electric Building Block Switch This module is used in the same way as the AUNO electronic building block 4-channel MOSFET switch IRF540, except that the original 4-channel is changed into one. The method of use refers to the AUNO4 MOSFET switch IRF540 module: The 4-way MOSFET switch we designed can provide 4 sets of electronic switches, which are used to control different circuit modules. Affected by the working principle of MOSFET, this electronic building block can only be used to control DC circuits, such as DC LED screens, etc., and is not suitable for AC circuit control. In the extreme case, the MOSFET switch can be used to control a 100V / 33A DC circuit, but the control of a small DC voltage is recommended to be not less than 9V. In the circuit connection, the wiring of the controlled end is a little more troublesome. Take the control of 12V LED strip as an example, connect the power supply between the positive (+) and negative (-); Then connect the positive pole of the LED strip to the positive pole (+) of the module, and the negative pole of the LED strip to the switch 1 (S1); If there are other LED strips to be controlled, just connect the positive pole of the LED strip to the positive pole (+) of the module, and the negative pole of the LED strip to the switch 2 (S2), switch 3 (S3), switch 4 (S4); Package List 1 x Electric Building Block Switch