ok, I see where I shot off the rails
when you define 'W' that way for rads, do you understand the needed resolution/accuracy ?
I just bought this
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=7556455435 and I know Incoherent can do it, but who else ?
and Incoherent is probably never going to test a rad (too clever by far, lol)
why do you not wish to characterize the wb heat load the same way ?