GET SYNERGIZED
Get synergized about the new high-performance Prism Synergy Series 24V sign illumination and Energizer Series line of power supplies.

Prism Synergy Series
Prism Synergy Series exceeds expectations in channel letter and cabinet sign applications with its top-tier LEDs for unrivaled efficacy.
Energizer Series
Energizer Series is Principal Sloan’s complete line of power supplies engineered for excellent performance and reliability and built to excel in even the most demanding environments.
Recent News

EY Announces Blake & Bryan Vincent of Principal Industries as an Entrepreneur Of The Year® 2023 Southwest Award Finalist
Entrepreneur Of The Year celebrates ambitious entrepreneurs who are building bolder futures.

Principal Industries Continues to Grow
Principal Industries announces the acquisition of SloanLED.

Principal Lighting Group Concludes Litigation Against Reece Supply Company & RetroLED
After more than two years of litigation, PLG is pleased to announce that it has favorably resolved the case.

Signs of the Times BrandStudy™ 2020 from Signet Research Inc.
P-LED is the only company ranked in the top 3 in all categories.