Thank you for the tip on the Joe Holmes. You dont remember by chance who where those other color geeks, which had those dropping color temperature experiences with the solux lamp? But if the deterioration rates of 30-40 k over bulb life time, as given by the manufacturer, are correct, then i would consider this degradation rather insignificant. Reflectors, dust and plastics on norm lights make bigger changes. I think the solux bulb is pretty "practical", compared to the price and the light quality of "best" fluorescent solutions. regards Jan Albrecht ----- Original Message ----- From: <CDTobie@aol.com> To: <sirius1@wanadoo.nl>; <epson-inkjet@leben.com> Sent: Tuesday, January 29, 2002 6:31 PM Subject: Re: Mr CD Tobie: solux lamps and spectral stability > > In a message dated 1/29/02 11:56:59 AM, sirius1@wanadoo.nl writes: > > >Did you actually measure the spectral change of the Solux lamps? If so > >i > > > >would very much appreciate to hear about your findings and what bulb in > >what > > > >fixture you did use. Did you run the lamp at normal voltage or at a higher > > > >voltage to achieve 5000 or 5500 K? > > Joe Holmes is the color geek who has done the most testing with special > fixtures for Solux, but other geeks who have run them assure me that the drop > off in color temerature is no fluke, and the color accurate life is > relatively short. Cool compared to tungsten is another way of saying hot > compared to fluorescent. Some users may have specific uses where the smoother > spectra of these bulbs is a signicant advantage; but for most users the best > of the corrected color fluorescent bulbs are a more practical solution. > > C. David Tobie > Design Cooperative > CDTobie@designcoop.com > - > Turn off HTML mail features. Keep quoted material short. Use accurate > subject lines. http://www.leben.com/lists for list instructions. > - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.