For those who use the Petromax in "normal operation" is this "Tuning part" totally useless because it does not fit into the lamp! The flame retardant tube of Rapid fuze inclined tall does not consider the recess of the parterre this. The effect of this is that the plate sits either totally wrong, thus the glass cylinder also is crooked and the lamp accordingly can not be assembled, or one so take your plate as it is, and sends him back. I'll do that, 12.00 for this crap, absolutely no recommendation for this wonâ! As mentioned before this is not fault of the trader, everything went well, but the lousy production!