Advance Electronic Ballast for...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$96.20
$48.51
Advance Electronic Ballast for (2) F40T12 Lamps 120V Rapid Start with 0.98 Power Factor

Advance Electronic Ballast for (2) F40T12 Lamps 120V Rapid Start with 0.98 Power Factor

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Model: RELB2S40N35I
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$96.20
$48.51
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Advance Electronic Ballast for (2) F40T12 Lamps 120V Rapid Start with 0.98 Power Factor

Professional Electronic Ballast for T12 Fluorescent Lighting Systems

The Advance Electronic Ballast delivers reliable performance for dual F40T12 fluorescent lamp applications with 120V operation and rapid start functionality. This compact electronic ballast features a high 0.98 power factor for efficient operation and meets multiple certification standards including UL, CSA, Energy Star, and RoHS compliance for professional lighting installations.

Professional Features & Benefits

  • Dual Lamp Capacity: Operates two F40T12 rapid start lamps simultaneously for comprehensive area lighting coverage
  • High Power Factor (0.98): Maximizes electrical efficiency and reduces reactive power consumption for cost-effective operation
  • 120V Operation: Compatible with standard residential and commercial electrical systems for versatile installation
  • Rapid Start Technology: Provides quick lamp ignition and extends lamp life through controlled starting sequence
  • Compact Design: Measures 9.5" x 1.3" x 1.0" and weighs only 1.4 lbs for easy installation in standard fixtures
  • Multiple Certifications: UL, CSA, Energy Star, and RoHS compliant ensuring safety and environmental standards
  • Fixed Output: Delivers consistent light output for reliable illumination performance

Technical Specifications

  • Country Of Origin: USA
  • Frequency: 60 HZ
  • Frequency Rating: 60 Hz
  • Lamp Type: T12 RAPID START
  • Nema Standard: 29
  • Number Of Lamps: 2
  • Output Type: FIXED
  • Power Factor: 0.98
  • Product Height: 1.0000 IN
  • Product Length: 9.5000 IN
  • Product Weight: 1.400 Lbs
  • Product Width: 1.3000 IN
  • Standard: CSA certificate;UL certificate;CEC Listing;Circle E logo;CSA E;DOE;Energy Star;RoHS Compliant
  • Start Type: RAPID START
  • Voltage Rating: 120 V

Professional Applications

  • Commercial Office Buildings
  • Retail Establishments
  • Educational Facilities
  • Healthcare Facilities
  • Industrial Workspaces
  • Warehouse Lighting
  • Government Buildings

Why Choose Advance Quality?

Advance electronic ballasts provide dependable performance with comprehensive certification compliance including UL, CSA, Energy Star, and RoHS standards. The high 0.98 power factor and rapid start technology ensure efficient operation and extended lamp life, while the compact USA-manufactured design facilitates professional installation in diverse commercial and industrial lighting applications.

Manufacturer Resources

Product Specs

Country Of Origin:
USA
Frequency:
60 HZ
Frequency Rating:
60 Hz
Lamp Type:
T12 RAPID START
Nema Standard:
29
Number Of Lamps:
2
Output Type:
FIXED
Power Factor:
0.98
Product Height:
1.0000 IN
Product Length:
9.5000 IN
Product Weight:
1.400 Lbs
Product Width:
1.3000 IN
Standard:
CSA certificate;UL certificate;CEC Listing;Circle E logo;CSA E;DOE;Energy Star;RoHS Compliant
Start Type:
RAPID START
Voltage Rating:
120 V
Department:
Electrical

Advance RELB2S40N35I – Frequently Asked Questions

1) Will the Advance RELB2S40N35I ballast run two F40T12 lamps on a 120V circuit?
That is exactly what the RELB2S40N35I is built for: two F40T12 rapid start lamps on a single 120V, 60 Hz supply. It is a fixed output ballast, so both lamps run at one light level with no dimming control. If your fixture is wired for 277V, this one will not work on it.
2) Will an Advance RELB2S40N35I fit inside my existing troffer ballast channel?
The ballast case measures 9.5 x 1.3 x 1.0 inches and weighs 1.4 lbs. That is the standard small-can footprint most 2-lamp fluorescent troffers and strip fixtures are built around, so it drops into the same channel as the magnetic ballast it replaces in the great majority of 4-foot two-lamp fixtures. Measure the channel opening against those three numbers before you buy a case quantity for a building.
3) Can I use this Advance ballast to replace a magnetic T12 ballast in an older fixture?
Yes, and that is the common use. The RELB2S40N35I is an electronic rapid start ballast for the same 2-lamp F40T12 configuration older magnetic ballasts served, on the same 120V 60 Hz supply, and the lamps and sockets stay as they are. The wiring is not identical to a magnetic unit, so follow the leads on the ballast label rather than copying the old harness color for color.
4) Will this ballast work with T8 lamps instead of T12?
No. The RELB2S40N35I is a T12 rapid start ballast and it must be lamped with F40T12. T8 lamps need a T8 instant start or programmed start ballast, and putting them on a T12 ballast will shorten lamp life or fail to start them. If you are converting a building to T8, buy a T8 ballast and relamp at the same time rather than mixing.
5) Is the Advance RELB2S40N35I UL listed and Energy Star certified for a government or institutional spec?
It carries UL and CSA certification, CEC listing, CSA E, DOE, Energy Star, the Circle E logo, and is RoHS compliant. It is also built to NEMA standard 29 and made in the USA, which covers the domestic-content line item that shows up on a lot of government and institutional purchase specs.
6) Does the 0.98 power factor on this Advance ballast matter for a commercial building?
It does if you are running a lot of them. At a 0.98 power factor the ballast draws close to purely real power, so line current per fixture stays low and a branch circuit carries more fixtures before it is loaded out. On a utility account billed with a power factor penalty, a floor of high power factor ballasts avoids the reactive charge that older magnetic units on the same lamps generate.
7) What is the difference between rapid start and instant start for a two-lamp fluorescent ballast?
Rapid start, which is what this Advance unit is, heats the lamp cathodes before striking the arc. That is easier on the electrodes in spaces where the lights are switched frequently, so it suits offices, classrooms, restrooms and any circuit on an occupancy sensor. Instant start strikes without preheating and uses slightly less input power, which favors runs that stay on all shift, but it costs lamp life under heavy switching. For an F40T12 retrofit in an occupied commercial space, rapid start is the safer choice.
8) Can this Advance ballast be dimmed or tied into a lighting control system?
No. The RELB2S40N35I is a fixed output ballast, so it runs the two lamps at full light and has no dimming leads or control input. Switching it on and off from a relay panel or occupancy sensor is fine, but 0-10V dimming or a daylight harvesting scheme needs a dimming ballast instead.
9) What Advance part number should I order to standardize the two-lamp T12 fixtures across my property?
Order Advance RELB2S40N35I. That single model covers every 120V two-lamp F40T12 rapid start fixture in the building, which keeps one part on the shelf for your maintenance stock instead of a mixed bin. It is sold as a single ballast, not a lamp kit, so order lamps separately if you are relamping at the same time.
How fast can I get the Advance RELB2S40N35I delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Advance RELB2S40N35I come with a warranty?
Absolutely. The Advance RELB2S40N35I is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Advance RELB2S40N35I?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Advance RELB2S40N35I from ZenSupply?
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