While applying Rothenberger this burner as soldering, but for brazing and continuous operation, I would definitely not use it. The plastic housing demoted this device looks really a matter of principle to a lighter which should be put into operation only one-second increments. But even here there are unfortunately smears: Although the device is described on the packaging outdoor with the term, but can be the flame too auspusten easy as that such application would give meaning.
On the whole, an ambivalent device the perfect little helper for hobbyists and DIY enthusiasts seem to be in theory, in practice, but unfortunately can not fully convince. Too small for a blow torch, too big for a lighter to carry it in your pocket. Many of the theoretically possible applications fail due to the absurdly contradictory processing of the unit (plastic parts in the area of the burner! Seriously, what is this please?).
As lighter with MacGyver puff, for lighting grill lighter and garden torches, but quite usable. However, more is not in it, therefore only three stars - which in my opinion already appears almost too generous given the many negative point.
I just can not believe that so many important components to this unit are made of plastic .. only of about 1 cm wide ring at the burner is made of metal. But at flame temperatures of about 1300 ° C, the device will also not very confidence-inspiring. Why do you build such a device is not entirely of refractory material?