Steve Falcon Posted March 2, 2018 Share Posted March 2, 2018 I picked up an old Arrisun 12 with EB 575/1200 High Speed in good shape for the age. I've refurbished both, so I've seen the ins and outs of each. A couple questions, as I'm new to HMI. The USHIO lamp loaded in the fixture has a loose base. The adhesive blobs that would attach the ceramic base to the glass of the par is gone, and the holes where the leads enter the par are not sealed. I assume that the sealed beam enclosure is supposed to be a vacuum, right? It clearly isn't given this condition. The lamp fires up and looks great, but I'm going to assume it shouldn't be run in this unsealed state. Thoughts? Also, where to get those lamps? Is there a less expensive option than the ~$500 price I am seeing for USHIO (e.g. https://www.filmandvideolighting.com/1200-watt-hmi-par-64-old-style-bulb-arri-ltm-mole-daylight-ushio.html)? Link to comment Share on other sites More sharing options...
Ed Conley Posted March 2, 2018 Share Posted March 2, 2018 I don't think they are vacuum sealed enclosures for those Par 64 style bulbs. There isn't a need for them to be. Link to comment Share on other sites More sharing options...
Matthew Parnell Posted March 2, 2018 Share Posted March 2, 2018 Filmandvideolighting.com has Koto 1200 SE Globes for US $170. If you stick with brands like Koto, Osram, GE and Ushio you should be fine. Globes shouldnt be used with physical damage. Once youve seen a HMI or larger tungsten lamp explode, youll understand why. Link to comment Share on other sites More sharing options...
Steve Falcon Posted March 2, 2018 Author Share Posted March 2, 2018 I'm not seeing a Par64 1200W HMI there for $170, just single-ended globes in that price range. Not sure why my link above is broken. Trying again: https://www.filmandvideolighting.com/1200-watt-hmi-par-64-old-style-bulb-arri-ltm-mole-daylight-ushio.html Link to comment Share on other sites More sharing options...
Matthew Parnell Posted March 2, 2018 Share Posted March 2, 2018 Sorry I didnt realize youre after the old old style Arrisun 12 sealed beam globe. Good luck with that. Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted March 2, 2018 Premium Member Share Posted March 2, 2018 I think that's why those are often found going cheap - the lamps cost a fortune. The spendy part of the equation is the ballast, though. Most of the 1.2K PAR HMIs I've seen had magnetic ballasts, which are far less useful, so if you have one with an electronic ballast that deals with flicker-free and silent modes, you've done well regardless. P Link to comment Share on other sites More sharing options...
Steve Falcon Posted March 2, 2018 Author Share Posted March 2, 2018 Yes, I'm happy with the ballast. Seems to work well and looks great after refurb. 50' leader in good shape too. Link to comment Share on other sites More sharing options...
Premium Member Adrian Sierkowski Posted March 2, 2018 Premium Member Share Posted March 2, 2018 I don't think you'll find a cheaper sealed bulb. I don't think the bulbs PAR enclosure needed to be a vacuum, but honestly, I'm not 100% on that. Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted March 3, 2018 Premium Member Share Posted March 3, 2018 If in doubt, get a Photon Beard Platinum Blonde head and run it off that ballast (check that'll work, but I'm fairly convinced it will.) 1200W HMI Blonde. Very powerful. Link to comment Share on other sites More sharing options...
Ed Conley Posted March 5, 2018 Share Posted March 5, 2018 http://rstvisions.com 818.566.1114 Ask for Marsella they have 18 left. $320.00 Link to comment Share on other sites More sharing options...
Steve Falcon Posted March 5, 2018 Author Share Posted March 5, 2018 818.566.1114 - Ask for Marsella Thanks for the pointer.. Link to comment Share on other sites More sharing options...
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