One of the Random jokes at our Office:
Question (from 'Someone'): "Did You Call RUUD"?
Answer (by 'Someone' - usually me): "No, I was very polite when I called!"
Seriously though, RUUD is a very good Company to deal with - as they will supply Pole Base documentation for use with their products, return Lighting Layouts (foot-candle levels at points) quickly, and are very prompt + detailed with quotations.
They tend to bombard with quotation follow-ups if you do not respond within a couple days!, but that's not too bad.
Among the many Manufaturers out there, RUUD, along with Metalux (Cooper) and GVA are working with us (the Company I am an injunear with) to narrow down the issues and effects that Sub Zero Environments have on Fluorescent Lamps - more specifcally, with T5 HO Lamps.
In the "Warehouse Freezers", where Temperatures range from 0ºC down to -30ºC, the net output Lumens for Fluorescent Lamps is reduced between 50 - 70% respectively, with a corresponding downward shift in Color towards red (from 5000K down to 4100K; and even as low as 3500K).
Additionally, when Fixtures are located within 10 - 15 feet of an Evaporator - such as being located in the path of air leaving the Evap., light levels may fall as low as 20% the net Lumens for the Fixture, and Color 'Red-Shifts' (in lieu of a better term) down as low as 2700K.
It's a really serious issue with very little documentation / study involved.
Woops, got off topic again!!!
BTW the Term 'Red-Shift' really does not apply here, as the Light emmited from the Lamps is not accelerating away rapidly, causing the White Light to 'Red-Shift'...(Astrophysics is not an observed Science in the Warehouse Freezers - unless said Freezer is a lone Entity floating through Space heading towards a Black Hole; then it is safe to say the 'Red-Shift' Term is very accurate!!!)