The compressor, outdoor fan, four-way valve and negative ion generator are all powered by AC220V, so the AC220V can be controlled by the relay to control the operation of each part.
R1 is a varistor for overvoltage protection. SI1 is a fuse. The socket J2 is the AC220V output terminal, and the external transformer is used to step down the AC220V. After being stepped down, the power module is connected to the power module to obtain DC12V and DC5V respectively.
Bluetooth Headphone
Bluetooth headpone also call bluetooth earphone or bluetooth earbuds,which is a headset that provides a two-way connection to the user's cellphone via Bluetooth. Fitting in one ear only, the part that is pressed slightly into the ear canal typically comes with removable small, medium and large tips.
bluetooth earphone,bluetooth earbuds,best bluetooth earphones,bose earphones,earphone price
Pogo Technology International Ltd , https://www.wisesir.net