Greenhouse overhead irrigation

Hi,

I am looking for an overhead irrigation (sprinklers) for greenhouses, something hanging from the roof.

Richard Perkins (from Ridgedale) had something like this in his shop, but hasn't anymore.
Anyone knows the name of his system? Or European sources of these kinds of materials?

I have seen misting systems, rather than droplet systems.
They are automatic and involved a device that looks like a fly swat covered in a fine mesh.
Water flows when the mesh dries out and as the mists settles on the mesh again, it sinks and tips the switch for water flow off.
The mesh then starts to dry out again and so on.

Hans, are you wanting to provide a mist watering system for small plants? Or growing production in the greenhouse?

We grew a cutiings on a mist table.

Generally plants prefer to be watered at thier base near roots. You may be growing things that prefer the mist

Please tell us more. :)
Thank you