Super Slim Recessed LED Floor Spot

Please can you advise the diameter of the base (lighting) part that sits within the laminate and the top part that sits over the aperture?
Cut out is 45mm, overall diameter is 55mm.

Would these be suitable to use on the floor in a wet room. The floor will be tiled with porcelain tiles.
If it’s a wet room with a wet floor they’d fail within a year or perhaps months. You’ll need something that is both low voltage and IP67 or IP68. If it’s a wet room (and the area they are in doesn’t get wet) you can expect them to work okay.

Would it be OK to fit five of these light in a line into a porcelain floor tile?
This would be fine, just remember multiples are wired in a parallel circuit [do not wire in series].

If using this as a downlighter will it be ok to fix with silicone?
Yes that would be a suitable material - ensure it it held in situ by tape until the silicon sealant has cured.

Want to use this to illuminate a recessed cubby hole above a bath, height of recess is about 400mm, is that ok for heat projection? surfaces will be tiled.
This unit creates very little heat and no heat will be projected into the alcove. In short an ideal product that will provide the right amount of light for your needs.

Is this available in any other colour temperatures ?
These are only available in one colour temperature. 3000k - Warm white.

Are the super slim recessed LED floor spot lights dimmable?
These fixtures are not dimmable.

Please can you advise how many lumens the super slim recessed LED floor spot gives out?
The lumen output for these fittings is 20. That`s for warm white and white.

what transformer do these lights need
Any conventional (non electronic) transformer can be used but the 10va model at the bottom of the page is well suited.