12v leds

Hiya! My bathroom currently has 6 x 20w halogen (GU5.3 mr16) 12v downlights which are powered via 2 drivers, 3 lights per driver. 3 of the lights have been out for a while so after investigation it looks like one of the drivers has failed. These were installed by the previous owner. I want to...

Hello What does this symbol mean on this swan neck light fitting please? The symbol that looks like an F after the 0.5? Can't find it with Google. I'm hoping its an obscure symbol for double insulated. I have 5 x 20w swan neck halogens on a 30-105va transformer. I'd like more lumens this time...