This is an enclosed downlight with only small ventilation holes in the top, minimising any draughts from the ceiling.
The light is classed as "closed" and "abutted" (CA) meaning that the insulation can be fitted right up to the fitting.
The light is fire rated for 30 minutes and has an acoustic rating. The diameter of the cut out is 125mm.
For technical data follow this link. http://www.superlux.co.nz/products.asp?id=343&product=242
For more information email firstname.lastname@example.org or phone NZ 09 475 6747