50w 12v halogen might be a good starting point.
A lense would soon tell you :-)


        RM

> > > well I was just wondering...I was thinking of a
> > > laser soldering 'iron',
>
> > They exist, primarily for automated soldering of SMD parts.  Very
> > effective, and very expensive.  I can't imagine what kind of work
> > you'd have to be doing do make a $50,000 soldering iron seem like an
> > affordable solution.
>
>
> However the idea does bear thinking about. Maybe
> a low-cost solution using a decent power infrared
> lamp, and a focusing device like a magnifying glass
> or metallic reflector. Since the idea was to replace
> a hot air pencil and only SMD solder a small area,
> it should be very doable just by focusing the infra
> red energy.

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