I will be using 2 or 3 spike lights, with probably 350lm gu5.3 led lamps which are around 5.5w each but depending on what it looks like I may go for brighter lamps at around 8.5w each. The maximum distance of cable that seems to be supplied with these spike lights is 5m but I can't find any cable sizes. I would have thought it would not be less than 0.75mm2. If I place an adaptable box for the driver strategically there would only need to be a maximum of around 2m of cable from the fitting to the driver so the voltage drop would not be an issue over this sort of length according to a online volt drop calculator. If I convert a gu10 fitting to selv the fittings are rated for 50w gu10 lamps but I think that's more to do with the heat produced from a lamp? So for a 50w gu10 at 240v the current is 0.2A but for a 8.5w 12v lamp the current is 0.7A. Does anyone happen to know what the current rating for a gu10 holder is? Or even better are there any decent gu5.3 spike lights? I could only find stuff on amazon which is of potentially dubious quality.