CH341A 24 25 Series Burner Chip EEPROMThis CH341A 24 25 Series EEPROM Flash BIOS USB Programmer is designed to accommodate 24 EEPROM and 25 SPI flash 8pin 16 pin chips at a cheap cost. It has a CH 341A chip, which can automatically recognize 25 series chips, and a 24 25 series indicator lamp that allows the user to quickly determine the state of the modules. This awesome programmer is extremely user friendly, as it offers USB to TTL conversion and the SOP8 SOP16 to DIP8 converter board

you can refer to A7800 Datasheet

and similar

Guaranteed 3A output load current

The AC input is  85~264VAC which could be directly supplied from the house supplied voltage

Collector-Emitter Voltage VCES Max

Three different modes are available: Momentary Mode

The terminal block's small size allows it to connect two conductors on a PCB where space is at a premium

Added sleep mode

Brown for these 12K resistors

These are Carbon Film Resistor with a value of 9

electrons can move fast and readily via the current

hysteretic thermal shutdown