News

The UV-C AdvantageJune 25th, 2023

Using UV-C isn’t simply a matter of inserting a UV-C lamp into a fixture. There are several notable issues that may affect UV-C equipment and its effectiveness.

Keystone Introduces Color Selectable LED Tubes with 5 CCT ChoicesAugust 11th, 2022

3000-6500K Range, Single- and Double-Ended Wiring Make It Most Versatile Tube on Market (LANSDALE, PA) – What do you call an LED tube with five selectable color temperature choices, shunted and non-shunted lamp holders, available single- and double-ended wiring, and is up to 50% more energy efficient than conventional fluorescent tubes? The most versatile tube […]

Safety Notice: KT-LED45HID-EX39-850-D & KT-LED54HID-EX39-850-DJune 18th, 2021

Keystone has identified a rare manufacturing defect that can potentially lead to a hazardous condition where the lamp driver/base can separate from the LED array, thereby posing a risk of the LED array portion of the lamp falling. The products were known to be sold from March 2016 through August 2017.

Keystone Launches Essential Series Screw-in LED Bulb LineJanuary 8th, 2020

Philadelphia, PA: January 8th 2020 — Keystone Technologies, a leading manufacturer of quality lighting solutions for 75 years, launches the Essential Series LED Bulb line. These general purpose screw-in LED bulbs are ideal for retrofit and new construction applications, replacing incandescent and halogen bulbs across many common building types, including residential, retail, museums, hospitality, dining, […]