Ah ok...
Not sure why, but i assumed the perspex/poly carb sheet was mounted forward of the light, rather than directly to it...
I dont have a quad, but it'd still be interesting to see what youve done BLR...
(scratch that---i see the pic...)
And having a low level education may just help you when it comes to this hi-tech gadgetry mate... ...kids that havnt been to school work s**t out easy...i went to school & am constantly left baffled at figuring these tech things at the best of times...