FAQs for End Users

If you have a question that hasn't been answered anywhere else on the site, and you're shy about asking an engineer, one of our end-user FAQ documents might help.

The Fluorescent Hi-Bay FAQ
Answers to the most commonly asked questions from end users regarding fluorescent hi-bay fixtures.

T5HO vs. T8+ Hi Bays
This FAQ helps you decide which linear fluorescent hi-bay lighting option is right for you.

FAQs for Lighting Professionals

Even lighting professionals sometimes have questions. These FAQ documents address more technical concerns.

Distribution Center & Warehouse Lighting Recommendations
A practical guide to recommended lighting levels in distribution center & warehouse applications. Thanks to the excellent lumen maintenance of linear fluorescent fixtures, much of the lumen waste associated with HID fixtures can be eliminated.

S/P Ratios, Are they Useful?
A discussion of the sometimes controversial subject of S/P Ratios and their usefulness.

S/P Measurement
An independent study of S/P Illumination measurement devices and methods.

Non-Conditioned Warehouse Space Temperature Concerns
Important facts to consider when selecting fixtures for non-conditioned warehouse spaces.

Light Output vs. Temperature
A look at hi-bay relative light output at various ambient temperatures in non-conditioned warehouse spaces.

Freezer Storage
Relative light output graphic for the T5HO sealed fixture in freezer storage applications.