Compact Multi-Purpose LED Lights - Pack of Ten with CCT Colour Temperature Control

Looking at putting these into my sleeps what does it mean by a void?
The void is referring to the depth of the hole required.

Can you tell me the lifespan of these please?
The lifespan of LED's is typically 50,000 hours lamp life.

Can these be used in the perimeter of a bathroom floor?
Yes, these are suitable for bathroom zone 0, 1 and 2 - and are IP67 rated.

Are they dimmable ?
This 10 light kit is not dimmable.

Can i purchase additional transformers and manifolds for these kits? I have a customer who wants these lights installing in the soffit around there roof, but i need to put 4 lights here, 3 there, 2 there etc so i would like to supply each location from a seperate transformer but do not want to have to buy a complete kit each time
Unfortunately these kits are only available as a kit, and separate transformers, heads cant be bought.

I have two sets of these lights getting hard wired in the same area on the same light switch. Can I add the second manifold (additional set) to the first, does a single transformer have enough capacity to run the two sets of lights?
No the transformer isn`t sufficient to power two sets of LED`s, overloading it will cause it to overheat and switch itself off. Of course two transformers can be wired into a single fused spur and be controlled by one switch.