They do two Wedge lamps; I know this because I bought a pair for the Jimny at a restoration show the other week.
The website is not the best to navigate but if you scroll to the bottom of
THIS page there are two - a T5 and a T10.
I cant remember what those translate to in normal bulbs but I think the T5 = 501 W5W, and I
THINK the T10 = 580W 21W
So the T5s are what you'd want. They are very bright. I'll see if I can find my photos of the Jimny No.Plate bulbs I fitted
EDIT:
The attached photos shows a run-of-the-mill LED fitted in the RH position. The LH bulb is the one from Dynamo Regulator Conversions and is significantly brighter!
The other photo is an illustration of the quality comparison...
The bulb with the clear lens is the eBay one (described on eBay as "Super bright"! Needless to say, I complained to the vendor about that description and sent the same photos as evidence) - also note that the contacts are just very thin wire.
The DRC one has a much more substantial metal strip for contacts giving greater contact area. The whole thing is much better made than the eBay Chinese job, and comes boxed. I believe DRC may have had these commissioned themselves.
How long the DRC ones will last remains to be seen but I have heard no complaints from the vintage car world about any of their products; on the contrary - only praise.
FURTHER EDIT:
Looking at the photo on the DRC site the T5 looks exactly like the crap ones on eBay!! I can only assume that is an old photo and that DRC stock is changed to the type in
my photo