B234SR120M-A Universal Ballast - F34T12 or F40T12 Fluorescent Tubes

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  • B234SR120M-A Universal
  • B234SR120M-A Universal Ballast Wiring
  • B234SR120M-A Universal Ballast Dimensions
  • B234SR120M-A Universal
MSRP: $16.00
— You save $4.05


UNIVERSAL Electronic Fluorescent Ballast, 120V, Two F40T12, F40T12ES, F34T12, F32T12, or F40T10 Linear and U-bend Lamps, Rapid Start Ballast.

Universal Electronic Fluorescent F40T12 or F34T12 Replacement Ballast

Basic-12® ballasts are the ideal replacement for magnetic T12 ballasts. Save 20% on energy without changing the lamp or fixture!

  • 20% increase in efficiency - lowers lighting operation cost
  • Full Light Output - same level as magnetic equivalent
  • Quite Operation - much quieter that magnetic equivalent
  • High Frequency Operation - no lamp flickering
  • Light weight and low profile case - simplifies install with less cover interference in fixture
  • Excellent 3 year warranty 
  • UL Listed (Class P, Type 1 Outdoor), CSA Certified
Equivalent Replacement for:
  • Osram Sylvania MB2X40/120RS, QTP2X40T12/120RSN-B
  • Advance Philips R-2S34-TP, R-2S40-TP, Mark III, R-2S40-1-TP, RK-2S34-TP, RK-2S40-TP, RELB-2S40-SC, RQM-2S40-3-TP, R-2SP30-TP
  • Hatch HL240RS/12/W
  • Howard M2/40RS-120
  • PLP/Sli/Valmont: 6G1020, 6G1022, 89G480, 89G999, 8G1018, 8G1021W, 8G1022W, 8G1023W, 8G1024W, 8G1025, 8G1028W, 8G1122W, RF-240, RFC-240, RFH-240, RFH-240ES, RHC-240, M28-120, M-28-120,
  • Sola E-420-F-234-IC, ERSF-240-TP
  • Universal \ MagneTek 446-L-SLH-TC-P, 438-L-TC-P, 420-L-TC-P, W589DTCP, 755-L-SLH-TC-P magnetic ballasts
  • Pacific EN-234-TP
  • Lumi-Kon R-240-120-CP
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Additional Information

Our Part No:
Mfr Part #:
Input Voltage:
(2) F40T12ES, (2) F40T12, (2) F34T12, (2) F32T12, (2) F40T10. Also equivalent U-bend.
9.50" (L) x 1.70" (W) x 1.18" (H)
Product Data Sheet:
Meets Energy Star Requirements
Fixture Type:
Case Size:
Alternative Keywords:
B234SR120MA, B234SR120M-A0001, B234SR120M-A000I, B234SR120M-A010C
Number Of Lamps:
F32T12, F34T12, F40T12, F40T12ES
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41 Reviews

  • 5
    F40T12 ballast

    Posted by Len Fleury on Dec 14th 2020

    Once I color matched conductors, the install went smooth enough for the average homeowner to handle. Suggestion: make the black and white conductors about a foot longer. Other than that, a great little ballast.

  • 5
    After installation, light works fine

    Posted by Joan Hannon on Oct 4th 2020

    Arrived as promised and well packed

  • 5

    Posted by Lowell cantor on Oct 1st 2020

    Great product

  • 5
    Great product, even better service

    Posted by K Davis on Sep 27th 2020

    Perfect fit, fast shipping. I wish every online order was this simple.

  • 5
    Perfect fit

    Posted by Robert Johnson on Sep 4th 2020

    I have older fluorescent lights with old Advance ballasts. Ballast Shop recommended these They worked perfectly. Exact fit and all my lights work like brand new again!!

  • 5
    B234sr120m ballast

    Posted by Juan Delacruz on Sep 3rd 2020

    Installed and has worked just as it is supposed to. Quick and quiet to turn on lights.

  • 5
    Matching replacement for old magnetic ballast

    Posted by Steve on Sep 1st 2020

    The ballastshop.com website recommended this model as a replacement for an old magnetic ballast. Was shipped in a timely manner and well packaged. The ballast was an exact fit to the location of the old ballast, wire length was sufficient, and we notice startup/no-flicker improvements with the electric ballast.

  • 4

    Posted by David Avery on Aug 16th 2020

    Works good

  • 5
    Fix for Flickering Fluorescent Light Fixture

    Posted by Jeanne Coulson on Aug 7th 2020

    Well, when the problem isn't the bulb. We have four direct-wired fluroescent light fixtures in our garage, so we definitely wanted to fix the broken one rather than all four. The ballast that came in the fixture is no longer manufactured. We first tried to order a ballast from Amazon, which turned out to not to be a cross match and the customer service at that company was totally unhelpful. Ballast Shop's website made it simply to find the correct match. It has been installed and now all four fixtures come on together and our garage is well lit again. Success!

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