-> Articles
Ministry of Natural Resources Canada – “How Do Electronic [Digital] HID Ballasts Save You Money?”
http://oee.nrcan.gc.ca/industrial/equipment/lighting/how-to-save.cfm?attr=20
Sheridan College Institute of Technology – Lighting Technology Research Report:
Professor Petre Miu reports on the performance of Digital HIDTM (electronic) ballasts versus core and coil (magnetic) ballasts:
Accendo-Electronics-Sheridan-College-Institute-of-Technology-Lighting-Technology-Research-Report-August-30th-2011
LED Lighting – Fact or Fiction?
LED Lighting, Fact or Fiction? This article discusses a few hopeful ideas or rumors, and some of the reality to support or dispel them. Two of the most popular myths are shown in the opening section:
http://www.patmullins.com/ledlightmyths.html
Why Are Digital Ballasts Better?
Article By Susan Slobac: http://ezinearticles.com/?Why-Are-Digital-Ballasts-Better&id=754677
Toronto Directory of Green Building Products and Services
WIKIPEDIA: Electronic [Digital HIDTM (DHIDTM)] Ballast
Link to article: http://en.wikipedia.org/wiki/Electrical_ballast#Digital_HID_.28DHID.29_ballasts
Ontario’s Guiding Lights “Street Lighting” Addressing Energy Efficiency & the Environment.
Published by Local Authority Services Limited
The following article offers conclusions based on tests performed in 2006 where electronic ballast powered high-pressure sodium lighting, LED and induction lighting were compared. The testing was arranged with and conducted in the City of Pickering, City of North Bay, and Town of Trent Hills in Ontario, Canada.
The tests analyzed the various aspects of street lighting applications and reviewed the options in terms of their technological, economic, and environmental performance. Please note the enhancements in the Accendo digital ballast technology available on the market today versus the electronic ballast used in the 2006 test. The performance of the digital ballast has been improved substantially including the addition of Dynamic Resonance Ignition (DRI) technology which enables 100% HID lamp life extention and the guarantee that the lamp will not degrade more than 5% over ythe entire life of the HID bulb (40,000hrs +). Additional notable improvements:
| Electronic Ballast 2006 | Digital Ballast 2010 | |
| Input Voltage | 120V | 120V, 240V, 277V, 347V, 480V |
| Efficiency | 94% | 97% |
| Ballast Factor | 0.979 | 0.994 |
| DDI (Direct Digital Ignition) | No | Yes |
| Dimming Possible | Being Developed | Fully Developed & Proven |
| HPS/MH Bulb Capable | No | Yes, with Equal Efficiency |
| Wattage Range | 70W-250W low frequency | 50W-1000W high frequency |
Link to article: http://www.amo.on.ca/AM/Template.cfm?Section=About_Us1&TEMPLATE=/CM/ContentDisplay.cfm&CONTENTID=151114
