Here is the thorn Riga in my collection, it runs a 50w SON lamp and has Tridonic gear, it also has a hy-lite controls mini cell.

The lantern is opened by undoing two plastic clips either side of the bowl

Here’s the geartray, it has a Tridonic anti cycling ignitor, a Tridonic ballast and a Cambridge capacitors capacitor.

Here’s the lantern without the geartray

Here’s the mini cell

The back of the lantern, showing the spigot 

The sticker