2 colour change light bulbs (GL4 6Ge)

Bayonet fitting.
Quite dim. (Probably equivalent to 40 Watts or less)
Remote control can adjust colours and brightness.
Only 1 Remote.
1 bulb good condition. 1 bulb missing a colour.
I *think* both bulbs are the same brand and the remote control can control *both* bulbs. If not, I can have a hunt for a remote.