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Uniform Pulse Start

Uni-Form® pulse start metal halide lighting systems

The Uni-Form pulse start formed-body arc tube combined with new, more efficient low current crest factor ballasts using high voltage ignitors provides higher light levels initially (20% more) and significantly more maintained light over time (40% more) than today’s standard metal halide.

More Light – A Bright Insight

Many of Venture’s Uni-Form pulse start lamps can be used horizontally, too, giving 20% more initial lumens than standard, universal technology.


  • Exclusive formed body arc tube shaped to follow the curve of the arc stream
  • Patented stronger weldless mount construction -No welds mean less breakage during shipping
  • Tipless arc tube – Totally uniform shape further
  • improves performance for maximum color and light output uniformity


  • Opti-Wave™ ballasts designed for optimized waveform output to maximize
    performance of Uni-Form® pulsestart lamps:
  • Longer lamp life
  • Enhanced lumen maintenance
  • Excellent system color uniformity
  • Hot restart in less than half the time of standard pinch body metal halide systems
  • 50% faster warm-up

Lumen Maintenance Curve Comparisons

320W Uni-Form® Pulse Start/BU vs. 400W Probe Start/HOR

Lumen Maintenance Curve Comparisons

320W H75 Uniform Pulse Start vs 400W Universal Probe Start


  • Shrouded open fixture protection
  • UV Shield® – Blocks up to 80% UV, 50% more than most UV-reducing lamps
  • Reduces UV damage to merchandise and signage



  • Venture’s Uni-Form pulse start line of lamps has the greatest selection of lumen packages: 50W through to 1000W
  • Most complete line of open-rated products available in the industry

System Solutions

Venture’s pulse start system technology, actualized in Uni-Form lamps and Opti-Wave™ ballasts, represents advancement as important as the invention of the metal halide lamp. Every change in our arc tube design, lamp construction and ballast enhances overall system performance. This metal halide focus allows us to offer a vast array of integrated packages, providing optimum lighting efficacy and quality for virtually any application.

Uni-Form® Pulse Start Lamp Technology

Uni-Form pulse start lamps provide superior performance compared to traditional metal halide lamps. The specific benefits are higher efficacy, better color uniformity, faster warm-up, improved lumen maintenance and longer life. It all takes place in Venture’s revolutionary formed-body arc tube.
One key to superior lamp performance is heat management. In traditional arc tubes, uneven heating prevented optimum arc enhancement. Venture created an exclusive, tipless formed-body arc tube, sculpted to follow the actual curve of the arc stream. The shape creates a more uniform temperature profile. Higher temperatures draw more halides into the stream, resulting in more light generated. Our unique sculpting process also molds each arc tube for improved color uniformity.

Faster Warm-Up/Restrike

Combining our exclusive formed-body arc tube and ignitor starting, with our low current crest factor ballasts, provides faster initial warm-up and hot restrike up to 60% less time.

High Performance Results

Superior Lumen Maintenance

Uni-Form pulse start system lumen output does not decay as rapidly over life as traditional metal halide. Mean lumens improve dramatically.

Longer Life

Our Uni-Form pulse start system offers up to 50% longer lamp life along with improved lumen maintenance. This directly benefits end-users by reducing lifetime operating costs. While 50% of standard metal halide lamps survive at the end of their rated life, 70% of Uni-Form pulse start lamps will still be operating.

Color Uniformity

Lamp-to-lamp color variations occur due to arc tube temperature differences and poor power regulation. Venture minimizes variation through consistent thermal characteristics in every arc tube and better power control from our ballasts.

Better Cold Starting

Uni-Form technology offers more reliable starting at extreme temperatures, down to -40°C (-40°F). It’s perfect for winter weather or warehouse freezer conditions.

More Optically Precise

Our patented weldless arc tube mount precisely centers the arc. It outlasts welded mounts, staying more consistently on spec.

The Bottom Line Is More Light For Less Energy.

Uni-Form® pulse start technology will exceed your expectations.

More light for less energy makes Uni-Form pulse start the most logical lighting choice for designers and corporate energy managers seeking to drastically cut power bills. Compared to standard metal halide, Venture’s revolutionary system offers up to 50% improvement in system mean lumens per watt. In practical applications, the higher efficiency translates into a savings of more than 100 watts per luminaire! And that savings comes while still producing the same, or more, high quality light.