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Arunas Eimulis

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Posts posted by Arunas Eimulis

  1. Both working, both are in reasonable condition.

    One has barn doors, other hasn't

    They're big and heavy, so I'll ship to Europe only.

     

    https://www.ebay.ie/itm/202085601853?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

    https://www.ebay.ie/itm/202085600277?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

     

    I also have one 4k Sirio HMI with magnetic ballast, I'll also will let it go if someone interested

  2. I have acquired some old 2,5K and 4K HMI's. Both are dedicated 2,5k and 4k ballasts. 4k ballast is twice as big as 2,5k.

    When testing them I noticed that 2,5K LTM HMI gives the same light output as 4k Sirio HMI.

    I don't have a light meter to do the accurate test, but to my eye and on the camera it seems to give the same light output on spot and flood setting, see pictures attached.


    What could be the reason? Why 4k is not brighter?

    Both lights has new Chinese bulbs now, but the output was the same with used Osram bulb on 4K. Can it be the bulb? Ballast? Or something else?

    post-73760-0-28699500-1511511054_thumb.jpg

    post-73760-0-81562900-1511511060_thumb.jpg

    post-73760-0-76020300-1511511065_thumb.jpg

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