Quality, durability, consistency of light at any setting in any combination of units, do to 4 channel RC/RF transmitter at hot shoe of camera. With setting to 0.1 encasement. ( Build strong like German tank), Very easy to use.

None

Incredible, exceeded my expectation.

After long research, review and comparison of technical data.
I purchase: 3 Hensel Integra Pro Plus 500 w/s. This monolights exceeded my expectation. If you looking for quality, durability, consistency of light on any setting
and radio control, then Hensel Integra Pro Plus is the answer. This multi are voltage with 300W modeling light work for me for 15 months to my total satisfaction. And because work perfect I decide to purchase in June 11/2008 forth unit to my "home studio".

Customer Service

The best customer service is the one what you do not have or need to use it :-)

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Long time ago " Photogenic 500w/s"

Quality. Very fast recycle time, Less than 0.5 seconds.

Hard to find accessories.

High quality, German built. The variable power adjustments accurately reduce the light output. Built in modeling lights. They come in kits with or without lightstands. Aren't really impressed with the lightstands as they do not have air shocks. I use them as background stands instead. You can buy these at Adorama or BHPhotovideo or Calumet

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JTL, NOVATRON

300w modeling lamp....I was using 300w photo floods....these things put out the same light with just the modeling lamps, high power, adjustable.

None...

I got the 2 light system with 2 500 w/s units....These things are awesome....Excellent results.

Top quality in price range. User replacable bulbs.(and much cheaper to replace than some other units) They just keep working after 3 years plus. Notched (clicks) increments on intensity dial make adjustments easy.

Not well known in USA. Too bad as they are better quality than most of their competitors in same price range. Accesories a little hard to come by. After 3 plus years of location and studio use, the zippers on the carrying case are starting to fail.

Great lights. Built very rugged and reliable. VERY consistant in output. Had one problem and Performing Light sent new light overnight, no questions asked. I wish all my photo gear was this reliable. You get what you pay for, and these are not cheap to buy, but they are a top notch tool that I would buy again without even thinking twice.

Customer Service

Top notch-reminds me of "Kodak Professional"

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Norman, Visatec, Paul C Buff