MH UV shilds

Discussion in 'Test Kits, Controllers, Reactors and Dosers' started by davidfr7, 4 Nov 2009.

  1. davidfr7

    davidfr7

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    Has anybody used the nepturion 250W MH DE, has it got UV shields?

    The supplier said it has i would like to confirm this ?
     
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  3. lIghty

    lIghty

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    99% of the time a DE bulb does not have a uv sheild....
     
  4. poiromaniax

    poiromaniax MASA Contributor

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    DE bulbs should NEVER be run without a UV shield.

    A UV shield is any piece of glass. thats all, nothing special.

    SE are fine to run without glass...
     
  5. Nemos Janitor

    Nemos Janitor

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    Yup :thumbup:

    4mm heat treated glass will suffice. IMO
     
  6. Nemos Janitor

    Nemos Janitor

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  7. davidfr7

    davidfr7 Thread Starter

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    I read the post this make Nepturion DE 250 w fc2/18 claims to have UV shields. I wanted to know has anybody used this globe and can this be true.

    If a globe has UV shields what should you be looking for ?
     
  8. Renannchen

    Renannchen

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    i use these globes, but still have a glass ciuvering it
     
  9. Falcon

    Falcon

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    the venture 150w 20000k double ended i'm using has a uv shield built in so i dont see it as a fixed rule that double ended doesnt have uv,have you seen the globe?

    that would be the best way to find out,or could someone WHO USES THIS GLOBE please give your input here no point guessing as we are doing right now.
     
  10. Falcon

    Falcon

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    does the globe have two sleeves or one?

    ie there is one with like a drop of glass(like a bump) in the center and then is there a sleeve covering that one or can you touch the bump in the center of the glass?
     
  11. davidfr7

    davidfr7 Thread Starter

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    Falcon yes it has a inner and outer tube, but you can touch the bump
     
  12. Falcon

    Falcon

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    hmm but yuou cant touch the quartz sleeve?

    as long as you cant touch the quartz sleeve then it should have a uv shield,look at any SINGLE ended mh to see what i mean.it doesnt matter if the outer glass is smaller as long as its there.
     
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