Have 21x 7.8w
26x7w
3x9w
5x6.8w
1x6.5w
These will fit standard size down lights 92mm cut out they work on red back transformers no problem some of these are dimmable
Light shade and magnetic ballast, water rings irrigation times transformers feeding tubs they're probably 50 or 60 magnetic ballast, , no longer going ahead with