The warm up phase take circa 2,0h. The wax move very slow. But after 3- 4,0h the wax move very fast (to see on the picture).
My Lunar work with the original Mathmos Lunar bulb (100W).
Older Lunars work with a 75W bulb. But with 75 Watt my Lunar does not work.
Do not use a 100W bulb from a building center. This bulbs had destroy one of my Lunar bottles because this bulb are to hot and make the wax ugly. Furthermore the wax stick on the bottle.
I hope you understand me because I think my english is not very good.
For more details ask me.
Greetings from germany.