Shoebox, High Bays, Acorn, Specialty Fixtures

RT Lamp and Ballast Picture


  • 100,000 Hours Lifespan (IESNA)
  • 5 Year or 30,000 Hours Warranty (Pending Fixture Approval from MHT)
  • Square Profiled or Optional IP65 Die-Casted Aluminum Ballast
  • Includes Mounting Bracket for Lamp
  • Ambient Temp Range: -20 to 120 deg F (Consistent Extremes Do Not Apply)
  • Custom Retrofits, Engineered Heat Testing Available


  • 120-277V Electronic Ballast (208-277V for 400/500W)
  • Available 0-10Vdc Dimming, 2-way Communication
  • • Power Factor > 0.95, Operation Frequency 50Hz/60Hz
  • Color Temps Available: 3000K/4000K/5000K
  • CRI > 85 – Excellent Color Rendition

Available Options:

  • E39 Mogul Base
  • E26 Medium Base
  • 0-10Vdc Dimming Ballast
  • Custom Mounting Brackets

Product Dimensions

RT E39 Lamp Dimensions 2012


*Please refer to our specification sheet for more details

  • MHT Products are UL Listed/Recognized and Assembled in ISO9000/1 Certified US Facility
  • Every product is quality tested and inspected prior to shipment
  • MHT Lighting offers a 5-year Warranty (please see Warranty Terms and Conditions)
  • Made in the USA of US and Imported Parts, Meets Buy American requirements within the ARRA