The Obsolescence Clock on Your Installed Base
There is no federal HID ban. The real risk to your installed base is supply-side: state sales bans, RoHS expiries, and manufacturers exiting SKUs. Here is how to measure your exposure.
Area Classification and Specification Fundamentals: Class, Division, Zone, Groups, and T-Codes
Every marking on a hazardous-area nameplate is a claim about a place. Not about how rugged the equipment is, not about how well it’s sealed, not about its quality.
Emergency and Egress Lighting Inside Classified Wastewater Spaces
A ventilation failure in a gallery is a Division 2 event. A power failure in the same gallery can be the cause of that ventilation failure. So the moment emergency...
IP66, IP69K, and NEMA 4X: Washdown Ratings for Wastewater Lighting
Luminaire schedules for wastewater plants often list "IP66 / NEMA 4X" as though the two ratings were interchangeable. They are not. They come from...
Hydrogen Sulfide Corrosion and Luminaire Material Selection
Walk through the headworks of an older plant and you can often read the atmosphere on the fixtures: green and black corrosion on fittings, flaking paint on...
UL 844 High-Temp LED Lighting for Oil & Gas
See how high-temperature hazardous location LED fixtures hold their T-code in refineries and Petrochem plants, and why UL 844 certification matters.