Full list of tweaks:
All non space age items set to 1x1 grid size
Light Armor: 3x3 grid added
Heavy Armor: 4x4 grid added
Exoskeleton: increased from 30% to 100% and reduced power from 200kW to 10kW
Belt Immunity: reduced power from 100kW to 10kW
Night Vision: reduced power from 10kW to 1kW
Portable Solar Panel: increased from 30kW to 100kW