T5 bulb measurements

Discussion in 'Lighting' started by Tom, 11 Jan 2008.

  1. This could sound like a strange question but it could same me a lot of money on bulbs!

    I bought a cheap 3x24w luminaire ages ago on eBay, but I think the bulbs were crap as they all died quite quickly one after the other. As it was cheap, I need to know if it is a standard size or just some knock off that won't fit the sizes of the standard T5 bulbs, like the 22" Arcadia.

    http://www.aquaessentials.co.uk/index.p ... 8c1d6e2979

    Question: Is the 22" measured from the pins or the actual bulb? :?

    Oh and while I'm asking, does anyone know the Kelvin rating of that Arcadia bulb? ^^ I usually find the plant pro thingy's to make the tank look waaay too pink :wideyed:

    Cheers,

    Tom
     
  2. milla

    milla Member

    Messages:
    241
    Location:
    Leeds
    They sound like standad 24w t5HO bulbs.
    As such you can save even more cash by buying bulbs from lampspecs. See james's thread on cheap t5 bulbs. All the bulbs James reviewed are available for 24w. Think i replaced all 4 bulbs for around £20 - 2 daylight + 2 grolux.

    No idea on details of arcadia bulbs.
     
  3. Thanks for that tip, I bought 2 8000k bulbs and 1 4000k for under £30 inc VAT+ shipping, instead of £20 each off AE. They should fit fine too.

    Tom
     
  4. SuperColey1

    SuperColey1 Member

    Messages:
    2,668
    Location:
    Lincoln UK
    All plant gro lamps make the tank look pink. Most people use a mix of these with a daylight which balances the colour out.

    daylight on its own tends to look greenish. Therefore try 2 pinks with 1 daylight or 1 pink and 2 daylight then choose the preferred combo.

    Andy
     
  5. I got my bulbs yesterday, and they are fine. The 2 8000k look fairly blueish, but the 4000k helps balance that a bit. Don't ADA use 8000k?

    I might get 1 pink to replace one of my 8000k and see what that looks like

    Tom
     
  6. james3200

    james3200 Member

    Messages:
    296
    Location:
    CROYDON
    Yep

    They also do a 'green' version which has a more green spectrum to compensate the blueness
     

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