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Conventional Fixtures Beam Spread for PAR Units

Discussion in 'Lighting and Electrics' started by w8tah, Nov 16, 2008.

  1. w8tah

    w8tah Member

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    HI Folks:

    Working on our Christmas program. This year my worship leader has asked me to do a couple different things, and so i need a bit of help.

    I am wondering what the beam angles are for PAR 64 bulbs WFL, MFL, NSP and SP (i think i have those classifications right) Ive only ever used WFL and MFL bulbs. If someone can either point me to the appropriate reference or shoot me the numbers i would really appreciate it.

    Lighting Designer
    First Baptist Church, Medina Ohio
  2. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    Las Vegas, NV, USA
    Buy an iPhone or iPod Touch. Download LIGHT CALC from the iTunes Apps store for $4.99.


    Download this Excel worksheet from my website: Conventional_Photometrics.xls.

    To answer your question directly:
    1Kw PAR64 VNSP- 6° x 12°
    1Kw PAR64 NSP- 7° x 14°
    1Kw PAR64 MFL- 12° x 24°
    1Kw PAR64 WFL- 24° x 48°

    1Kw PAR64 VNSP- 10° x 24°
    1Kw PAR64 NSP- 14° x 26°
    1Kw PAR64 MFL- 21° x 44°
    1Kw PAR64 WFL- 45° x 71°

    For photometric formulas, see this Collaborative Article:
    Last edited: Nov 16, 2008

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