Info on a Dukane 680 bulb -> 575Watt MH

here is a link to the page:
http://www.donsbulbs.com/r/b.pl/hmi-575w~gs.html

and can be found in these projectors, as per what the page says:

HMI-575W/GS
have been found in equipment:

American Video Communications AVC-120-SS 120
American Video Communications AVC120SS 120
American Video Communications SUPER-TROOPER
Apollo Presentation Products 10701 COMPANION
Apollo Presentation Products E-575-SDV APOLLO-ONE
Apollo Presentation Products E575SDV APOLLO-ONE
Ask 1280 MPRESSION Video Projector 575W,Metal Halide,3000 hours
Ask 860 IMPRESSION Video Projector 575W,METAL HALIDE LAMP,750 HRS
Ask 880 IMPRESSION Video Projector 575W,Metal Halide,750 hours
Ask 960 IMPRESSION Video Projector 575W,METAL HALIDE LAMP,750 HRS
Ask 970 IMPRESSION Video Projector 575W,METAL HALIDE LAMP,750 HRS
Buhl Optical Company 2973
Buhl Optical Company 2974
DuKane Corporation 28-A-682 Projector Overhead
DuKane Corporation 28A682 Projector Overhead
Electrohome LCD SHOWSTAR REQ.SPECIAL INSTALL
George R.Snell Associates Incorporated ME-100 METRO-LITE Projector Slide
George R.Snell Associates Incorporated ME-35 METRO-LITE Projector Slide
George R.Snell Associates Incorporated ME-60 METRO-LITE Projector Opaque / Transparency
George R.Snell Associates Incorporated ME-76 METRO-LITE Projector Overhead
George R.Snell Associates Incorporated ME100 METRO-LITE Projector Slide
George R.Snell Associates Incorporated ME35 METRO-LITE Projector Slide
George R.Snell Associates Incorporated ME60 METRO-LITE Projector Opaque / Transparency
George R.Snell Associates Incorporated ME76 METRO-LITE Projector Overhead
Liesegang USA 575
Liesegang USA 643
Liesegang USA 654
Liesegang USA 655
Liesegang USA 669
Proxima DP-9100 Video Projector 575W,Metal Halide,700 hours
Proxima DP9100 Video Projector 575W,Metal Halide,700 hours
Strong 575 Studio / Stage