Are GX24Q-3 bulbs compatible with G24Q-3 bases and vice versa?
Are GX24Q-3 bulbs compatible with G24Q-3 bases and vice versa?


No.


The GX24Q-3 base is designed for use with 4-pin triple-tube lamps.
The G24Q-3  base is designed for use with 4-pin double-tube lamps.


The electronics in the base (often referred to as the electronic ballast) is likely designed for the specific load configuration.

The IEC specifications for dimensions etc costs money and is copyrighted - so they are difficult to obtain casually. The G24 appears to have a longer/deeper central peg.


The first letter G indicates a multi-pin push-fit connector type?
The second letter, if present, X, is for triple-tube variants.
For other types X can mean twist-lock as in GX53.
The number after that is the major pin spacing in mm (24mm).
The final letter indicates bi-pin (d) or quad-pin (q).
The final digit, indicates the power range ("-3" = 26W - 32W).




Useful references:


Howard Lighting