Philips Advance AmbiStar 120-Volt 3 to 4-Lamp T8 Instant Start Electronic Fluorescent Replacement Ballast-496810 - The Home Depot

Philips Advance

Model # 496810

Internet # 202977274

Store SKU # 135533

AmbiStar 120-Volt 3 to 4-Lamp T8 Instant Start Electronic Fluorescent Replacement Ballast

Philips Advance AmbiStar 120-Volt 3 to 4-Lamp T8 Instant Start Electronic Fluorescent Replacement Ballast

This item has been discontinued.
The Home Depot no longer carries this specific product.

$19.99 / each


Model # 496810

Internet # 202977274

Store SKU # 135533

The Philips Advance Black Replacement Ballast features rugged metal construction. This provides for long-lasting performance and ignites in less than 1 second to provide flicker-free starting. The metal construction provides durability.

  • Meets title for use in high-efficiency residential fixtures as stated in California's title 24 requirements
  • Electronic circuitry enables ballast to run cool and operate quietly
  • Lamp ignition in less than 1 second for flicker-free starting
  • CSA/ETL and UL listed
  • Meets class B FCC EMI rating requirement for the EPA energy star residential lighting fixtures
  • Note: product may vary by store


Assembled Depth (in.)  9.5 in  Assembled Height (in.)  1.2 in 
Assembled Width (in.)  2.5 in  Product Depth (in.)  9.75 
Product Height (in.)  2.79  Product Width (in.)  13.37 
Accessory Type  Replacement Ballast  Collection Name  AmbiStar 
Color Family  Black  Input Volts  120 
Material  Metal  Number in Pack 
Number of Lamps  Product Weight (lb.)  10 lb 
Required bulb type  T8  Returnable  90-Day 
Starting Method  Instant Start  Style  Traditional 
Warranty / Certifications
Certifications and Listings  1-UL Listed,CSA Listed,ETL Listed  Manufacturer Warranty  2 year limited warranty (from date of manufacture) 


Rated 4.9 out of 5 by 15 reviewers.
Rated 5 out of 5 by Not a Philips Ambistar ballast when ordering online for store pickup The ballast is listed online as a Philips Ambistar. Yet when you pick up in store the part is made by GE. If you look at a list of ballasts check the item number and you will see the GE and Philips one are the same. Other than different brand, the ballast has a some hum to it, but not as noticeable as the original 15 year old ballast. Easy enough to install, pay attention to the wiring diagram. I could not get it to work with just two lamps. October 21, 2014
Rated 5 out of 5 by Should have done this years ago Fairly easy project, changed out t-12 bulbs in four bulb fixture now using 3 T-8 bulbs. September 30, 2014
Rated 5 out of 5 by Great upgrade to my fluorescent fixtures Upgraded to these Phillips Ambistar ballasts and the well rated Philips 4 ft. T8 32-Watt Soft White (3000K) bulbs and significantly improved the light quantity & quality from the two 4-bulb fixtures in my home office... Other benefits: I eliminated the buzz I was getting from the older T12 40-watt bulbs and ballasts... and the energy savings should easily pay for the new ballasts & bulbs within 2 years. Installation was straightforward by just following the diagram on the new ballast. July 1, 2014
Rated 5 out of 5 by T12 to T8 Upgrade I have two four-lamp fixtures in the kitchen. Each has two magnetic ballasts. A lamp went out and I was out of spares. I decided right away to get ahead of the T12 phase out and do a retro-fit on the existing fixtures. I installed one electronic ballast in each fixture paying attention to wiring as in this case I was converting from Rapid Start to Instant Start. I replaced all the lamps with Phillips T8 Kitchen and Bath mainly for a warmer color. The result is more and better quality light, quieter and cooler. The energy savings is a bonus. By utilizing the existing fixtures in place I saved at least $50 and time. The lights in my kitchen tend to be on for long stretches of time. With installations that have a lot of on-off cycles, consider a Rapid Start Ballast for longer lamp life. June 25, 2014
Rated 4 out of 5 by Good Value easy to install as replacemnet or as an upgrade for old T12 ballast July 15, 2014
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