As much as I don't like it, lighting retrofit projects for warehouses and commercial offices have to compete for corporate funds just like all other projects. If it was up to me, lighting retrofits would just be given the green light and prioritized above all other capital requests, and corporations large and small would come flocking to RelightDepot for their energy efficient lighting needs. In the real world, project sponsors have to justify why they want to spend money on new lights if the existing ones work just fine. The most common way to do that is by building a b … Continue reading

T5 and T5HO fluorescent high bay fixtures and other T5-based specialty lights are built around a linear fluorescent tube lamp.  Like other types of lamps, the number in the name of the lamp reflects its size.  The “T5” name reflects the diameter of the tube in eighths of an inch.  A T5 lamp is five-eighths of an inch (5/8”).  Similarly, a T8 fluorescent lamp is eight-eighths (or one inch) in diameter and a T12 fluorescent lamp is 12 eighths (or 1-1/2 inches) in diameter.  One of the features that make a T5 bulb and T5-based high bay light fixtures more efficient is the f … Continue reading