I am replacing 2 wall lights and 2 ceiling lights in my new house. I have found that in three of the four lights a cable block was in the back of the light mounting wrapped in electrical tape (the other is a ceiling rose). I have been doing a bit of research to find out whether or not tape is a suitable way of protecting a cable block. The instructions for the new lights suggest they are but a bit of research on the internet suggests that the chocboxes are a better idea as they act as a layer of insulation in their own right. The problem I have is that in none of the lights I have will a choc box fit inside the light fitting. I presume the only way around this is to make the hole where the cable comes through larger and hide a box in the cavity. So is a cable block and tape satisfactory (I guess it must have been 15 years ago when the wiring was done)? If not do I have to make a hole in the wall or is there a mini chocbox I can use?