Help Centre

Installing the 40mm BC 4 Part Lampholder

This quick guide here is to help to install our 40mm BC 4 part lampholder.

This item comes in 4 parts, however sometimes we do put 2 of the parts together, so may arrive in 3 pieces.

  1. Separate the lampholder into the 3 parts and screw the bottom section of the lampholder onto your light fitting.

    And tighten the small grub screw inside the cap (This is important).

  2. If you have purchased the earthed cap, then please tighten the screw above and connect the earth wire (Green/Yellow) to the earth block as shown below.
  3. Wire the connection unit as shown below, Note: it does not matter which way around the wires go.
  4. Carefully seat the connection unit into the cap of the lampholder you may need to twist the connection unit until is slips in.
  5. Take the skirt of the lampholder and twist it onto the assembly note there will be a ratchet like clicking sounds.

    This is the locking barb locking the skirt to the cap, more information on this below.

The locking barb is designed to prevent the lampholder from separating accidentally.

However, there may be a time when you need to gain access to the inside of the lampholder, if you do then please follow this guide below.

Here is an image of the location of the locking barb once installed, as you can see there is a metal tag that's bent outwards and is hiding the plastic ribs in the inside of the skirt.

You will need to grab a small screwdriver and bend it inwards to clear the plastic ribs.

Once you have removed the lampholder you will have to bend that metal tag back out so when you screw the skirt back on it engages the locking barb again.

A quick video on how to unlock the barb below.