Not sure what you mean.
You said you were going to use 1.5mm²; surely 1mm² is more than adequate.
I thought you were recommending I get a 2 core cable (LV, no need to earth the fixtures), hence thinking that you were looking to save 50% copper by omitting a 1sqmm CPC (which wouldn't be 50%)
Re the rest of the replies, this is one aspect of building a house that I'm growing incredibly weary of - every question leads to more questions!
OK, so in my hallways I like the idea of having spots deliberately arranged to pake a pattern on the floor. Saw it in a hotel in belgium and really liked the way they had set 1 spot, then 2, then 1 then 2 etc.. made a nice mesh of light and dark spots
In rooms, I'm putting spots in the ceiling with the aim of providing downward lighting of the significant objects in the room e.g. in the bathroom the're a spot above each "appliance", in the lounge a u shaped couch and coffee table are lit, dining room table, kitchen island and so on.
I'm also putting in circuits for wall lighting mainly because the missus doesnt like downward light because it does something funny with her contact lenses. These wall lights will likely be uplighters and hence better suited to providing diffuse light
Good point about the LEDs just dimming and not providing a glow - i kinda wanted the glow. I'm looking at using ultrawarm white LEDs to try and get it, but does anyone have any specific recommendations for bulbs?
Regarding wire length/distance to next spot - does CSA have a bearing on this?
Regarding bulb options.. so in the true driver sense eric, do 230v leg bulbs come with such a driver built in, or is that the situation where I'm buying one bigger driver and using it on a number of lamps? Am i just buying 12v bulbs for that scenario, and because theyre 12v i know they have no driver/transformer/whatever built in, they wont get ridiculously hot, they should last a long time etc....
Anyone know of any good web resources along the lines of "how to buy LED bulbs and wire your home in a way that makes sense for low power consumption, low heat generation and low wallet indentation" because I could just do with a "read this and follow" set of instructions, rather than learning the ins and outs of yet another aspect of building this bloody house.. Or is that the point where someone says "ah. you need a Lighting Engineer!"