The Bolt also has an option for 8A or 12A on Level 1 but no option for restricting charge on Level 2.Haven't used it much so I had to go check the amps again.
Maximum is 7 kw which is 30 amps
Reduced is 6.3 kw or 26 amps
Minimum is 4.3kw or 18 amps
Can be used easily on a Nema 14-30 plug at the minimum setting
You can also set it for 120 volts but then the amps are getting really low. I think the % reduction is the same.
My charger has adjustable amps which is why I don't use the car setting much.