454nm vs. 420nm

Discussion in 'Reef Lighting' started by reef84, Feb 12, 2013.

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  1. reef84

    reef84 Feather Duster

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    is there any visible difference in the color of these bulbs and if so what is the difference
     
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  3. 2in10

    2in10 Super Moderator Staff Member

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    Yes there is. The 420 is violet and the 454 is royal blue.
     
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  4. Biocube

    Biocube Giant Squid

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    Yup!!! +1

    [​IMG]
     
  5. reef84

    reef84 Feather Duster

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    would running one of each be a good combo? along with 14k MH
     
  6. 2in10

    2in10 Super Moderator Staff Member

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    Yes or 2 420
     
  7. reef84

    reef84 Feather Duster

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    i have always run 420s but wanted to try something new
     
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  9. Peredhil

    Peredhil Giant Squid

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    I've tried the 454 and absolutely love them. Only reason I don't have them now is they were out of stock last time I needed to get them. I'll probably switch back to them when my current bulbs get old.

    I've tried a different 4 light combination every 9 months since I started. the 454 combos are my favorite.
     
  10. gcarroll

    gcarroll Zoanthid

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    The Hamilton 14K already has a huge spike at 454. I would feel the best move is to supplement it with 420.