morch_66479
Are the wires soldered in?
I have been able to remove bulbs from housings like these by carefully using a pick, or jewellers flathead screw driver to straighten the wire pigtails and pull the globe off the base.
New globes are available from ebay/aliexpress (may even jaycar), just measure your old unit to get the sizing. Get the appropriate cap to get the illumination colour you want and off you go.
Or if you get lucky at jaycar they might have the bulbs ready to go in bases.