A USB relay board helps you to control the power flowing in and out via a switch. The board warms gradually at whatever point an excess power is produced and a draw by means of electromagnetic waves is created keeping in mind the end goal to control the excess power being sent to the gadget straight forwardly. This helps to prevent any sort of damage to the electronic device that is secured. Control of devices within your home or office by a switch is an easy way out by a web controlled relay no
