On 30 December 2011 18:43, KPL wrote: > Thanks, had no idea about that. > But that reduced power mode would be quite short, kind of soft-start. > One second, or probably even less. > > Halogens I'm talking about are those with tubular bulbs, like this one: > http://www.sparksdirect.co.uk/500w-enclosed-halogen-floodlight-p-13363.ht= ml A side note to your original question - but I'd use quartz tube heating elements like these: http://www.quartzinfrared.com/ They put out infrared heat so they will also be able to direct the heat to some extent. They should last a long time. --=20 Martin K. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .