Budget Friendly LED Bathroom Shaver Light in White

Is the transformer/drive inside the unit or out?
It is integrated inside the fitting.

I have this light and the light cover is broken can I just purchase the cover budget friendly led shaver light cover?
I am very sorry but this is sold as a unit, we do not have spares of the diffuser. I will check however to see if we have a cover in the warehouse and get back to you.

Is there an alternative diffuser or cover for this lamp? In particular something more opaque.
No, sorry it’s prismatic like the picture. We cannot offer any suggestions on how you could alter this.

I need to replace a shaver light which was screwed to the wall above the mirror. The existing screw holes in the wall are 205mm apart. Will this model fit same screw holes ?
The mounting holes for this fitting are 170mm apart, however the length of the fitting will cover your old screw holes so no need to fill and paint them.

What bathroom zone is this light rated for, and does it have an IP score?
This fitting is IP20. Suitable for bathroom outside zones.

What length S15 does this take? I need one that uses 221mm.
This fitting requires a 60W S15 lamp which is 221mm in length.

When I unplug the razor or electric toothbrush from the unit, the unit is continuing to hum as if something is still plugged in. The light is working fine. Is this dangerous, and do you know how to solve this? (Turning the fuse box off for that room is the only way of stopping it currently)
The shaver point is protected by a safety isolator which may be heard to buzz or hum during normal use. This noise or interference comes the the windings within the isolating transformer which are used to isolate the 1 amp supplied at the shaver socket from the higher current on the supply. If customers find the noise a nuisance they can re-route the supply from the terminal block to the switched side of the pull cord - hence the shaver socket will only operate when the lights are switched on. This work should be carried out by a qualified electrician. We do not endorse the removal of the safety isolator - it is there for your protection.

I`ve just replaced the bulb and still not working, does it have a fuse somewhere and if so where?
Hi, the striplight lamp has a filament running from one end to the other. If you were to put one end into a live fitting while holding the other end you would electrocute yourself. To avoid this happening there is a micro switch within the fitting that disconnects the electrical supply if the diffuser is removed. I`m guessing that you have replaced the lamp but not yet replaced the diffuser.