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The Vari-Ballast™ is a microprocessor-controlled, intelligent ballast system for industrial, private label, and commercial lighting applications. Developed by International Engineering Products & Consultants (IEPC), the Vari-Ballast™ product line is a one-to-many solution, one ballast delivers many solutions.

The Vari-Ballast™, the first intelligent ballast system, is a global solution.
Universal input voltages (90V to 277V +/- 10%)
Variable output wattages (70W to 1650W)
Drives multiple lamp types (MH, HPS, MV, PS)
Light-weight, less than 4 lbs (1.8 kg)
Small footprint, VB400 is 6x6x4 inches (152x152x102mm)
Each ballast includes dimming, thermal monitoring, burn hour readout, timing controls, and a smooth end-of-life shutdown process. With an HID master control unit (MCU), thousands of lights can bemonitored and controlled from a central desktop, laptop, or hand-held computer.
 
I haven't had time to read much about it but how much does this new ballast cost? Did anyone see that in there?

Tim
 
Lowering the power output doesnt gain efficiency it jusy lowers the power and in turn the light output. There could be a peak energy efficiency for particular bulbs but in my experience you actually gain efficieny as you supply more power. This still only makes a 1-5% difference though.. I over-drive my bulbs with HQI ballasts, so not much help for me here. I do like the idea of running up to 3 maybe 4 400watt Halides off one ballast though..
 
well I did test of money savings on 250 watt bulb, It save in cost 7.00 amonth. over the point of a year it ammounts to 2 bulb replacements for me anyway., Thats a pretty good savings. Overdriving a MH is reall unnecessary but allot of people do it.
 

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