CCB lumens is a standard set by XGIMI itself, but XGIMI officially released the information, so the resulting conversion ratio is as follows
XGIMI H5 1400 CCB lumens is 27% brighter than its predecessor, H3S.
XGIMI H5 1400 CCB lumens
XGIMI H3S 2200 ANSI lumens
"XGIMI H5 is 27% brighter than XGIMI H3S". Therefore XGIMI H5 is 2800 ANSI lumens, which is 1400 CCB lumens in CCB units, and the CCB lumens converted to ANSI lumens is exactly 1:2.