Heater Control Illumination Light Fitting

[stephen06]

I am wondering can anyone offer me some advice,

The heater illumination on the fan was completely gone so i stripped half the dash apart to replace the two bulbs. Problem is i dropped one of the small black fitting the bulb fits into and can't seem to locate it. Are these black holders some kind of a standard fitting or will i have to get a whole heater control panel just for the black clip to hold the bulb,

I have looked extensively and i think it may be a twist-lock but im not sure and dont feel like pulling the van apart again to check,

Any advice would be great,

Thanks,