Lucas Lights

[Ian Williams]

Hi Stuart, I have a number of R40 some of which I have converted to R47, you simply need to remove the three rim locating studs from R40 shell and cut three L shaped slots as per the R47. Once you have done this an R47 rim fits straight on, and as you say you can use the R40 Reflector. I have not noticed any difference in the thickness of the brass that the buckets are made from, but have never actually put a wire gauge on them. The rims are of course completely different on the R40 and of no use to us in an A7 context. There are also some R40 variants which have a three hole mounting for the base stalk, I assume these are the ones you refer to, these are much more difficult to convert but they can be done if you are desperate.