Electrical wires, connectors, some rubber bands, screws and metal rings
1 sieve from a food processor (mine is from a Moulinex Odacio)
TERTIAL | IKEA.com
IKEA TERTIAL Ceiling Lights Construction:
If required, shorten the ADILS leg with a hacksaw. (I reduced it to 50 cm, which is an absolute minimum).
Drill a hole of about 8mm at the lower end (cable entry) and drill through the leg at the top (for hanging).
Remove the rotating part of the SNUDDA and mount the ADILS leg in the centre.
Screw on the TERTIAL table-clamps, a little off the edge of the SNUDDA disc.
Cut off the switches of the lamps and strip the wire.
Connect the wires with a connector. I’ve put three lamps on one connector. Then, I slid the wires coming from the connectors through the ADILS leg and joined them near the ceiling.
Stablising the ceiling lights
When I fitting the lamp to the ceiling I noticed that all the lamps were swinging to one side. They were bunching together, so I needed to stabilise the lamps to prevent them from swinging and turning.
Conveniently there is a small hole in the table-clamp and a slit in the pin that fits in the clamp. You can fasten the lamp by just drilling a screw through the hole and the slit, but it works better when you put in a thick rubber band (I guess it will also work with a small cork, a piece of wood, some silicone or glue) and fix it with a screw and metal ring.