Replacement Bulb for the Sun Ray I & II and Sun Square Plus A4634

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2.00 LBS
Calculated at Checkout
  • Octron Bulb for Sun Ray I and II and the Sun Square Plus Light boxes
  • Octron bulb end view
Frequently bought together:


The Sylvania Octron FBO 31/750 is a 5000k 31 watt bulb.  This is the bulb your Sun Ray I,  Sun Ray II Plus or Sun Square light box came with from the factory. 

The SunRay and SunRay II Plus will need 4 bulbs for full replacement.
The Sun Square will need 6 bulbs for full replacement.


31 Watts

2 pin configuration


CRI 75

22.5 inches

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1 Review

  • 5
    Brought back the sun.

    Posted by smitty on 7th Nov 2013

    Purchased four new light bulbs for our Sun Ray II. Wow what a difference new bulbs make. Changing the bulbs was easy; however, the old plastic holders on the U-end of the bulbs were brittle and two broke. They should package new plastic holders with the bulbs; or, offer them up when ordering new bulbs. Excellent product!

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