OpenEVSE Specs - gorawen/open_evse GitHub Wiki
Input: 12V DC
Power: 1.25W Idle (Charging 1.25W + relay load)
Relay: 12VDC up to 300ma coil > than 50 Ohms
J1772 compatible
Pilot output: -12VDC to 12VDC @ 1000hz
J1772 states supported: ALL (including "Vent Required")
J1772 diode safety check: YES
GFCI: 20ma trip
Dimensions: L 55mm (2.25 inch) x 45mm (1.75 inch)