Ingco HSG1405 3in1 Staple Gun 2 Channel Usb Qc3.0 Qc2.0 Dc-Dc Buck Converter Charging Step Down Module 6-32V 9V 12V 24V To Fast Quick Charger Circuit Board 3V 5V 12V The 20A version has a

The 20A version has a built-in shunt

Because the output frequency is different between the inverter and mains supply

it is possible to use the same supply but it seems to affect the amp meter reading

with light control function

which is great for tracking battery life or solar panels

Ingco HSG1405 3in1 Staple Gun 2 Channel Usb Qc3.0 Qc2.0 Dc-Dc Buck Converter Charging Step Down Module 6-32V 9V 12V 24V To Fast Quick Charger Circuit Board 3V 5V 12V The 20A version has aIngco HSG1405 3in1 Staple Gun Adjustable driving force Staples: Wire: 1 2mm, Crown: 11 3mm, Length 4 14mm U Shape Staples Wire: 1 2mm, Crown: 6 3mm, Length 10 12mm Brad Nails: Wire: 1 2mm, Length 4 14mm With 200pcs Staples 200pcs U Shape Staples 200pcs Brad Nails Matched with Staples: STS0208 STS0210 STS0212 U Shape Staples STS0412 Brad Nails: STS0310 Packed by double blister