Protector Lamp's Flame Safety Lamps have been in constant use since 1873 and the GR6S Garforth miners lamp is the approved method of checking for firedamp
Ah, this is the one i've been looking for! thanks for posting/sharing. Right, now to get some batteries!
Is there a specific voltage required to light the lamp?
3/5 volts is usually enough,it depnds on the rating of the fuse wire, so a little trial and error. Make sure you use the right fuel, lighter fuel, Colemans Camping Stove fuel or petrol, it has to have a low flashpoint