brianneil
- 10
- 3
I have used so many different brands of HPS over the years, mostly trying out new lamps by weighing up the pros and cons of spectrum vs lifespan vs dollars. Its all in the love of tweaking, you know what it's like. Im at the point now where I just dont believe half the rubbish about "longer lifespan" or spectral output graphs. I was wondering if anyone here is an expert on HPS manufacturing, and whether some brands actually have much longer lifespans? What is the actual science behind extended longevity in the manufacturing materials and sodium purity or is it all behind a veil of 'trade secrets'. Also the guy in my shop says that the spectrum changes over time, so even if you have a long life arc tube, you might have lost most of the blue and red wavelengths after 3 or 4 grows.
Cheers, Brian
Cheers, Brian