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

  • Instant start
  • Normal power factor
  • Sound rating class A
  • Ballast is UL listed
  • 120, 60 Hz, A.C
  • Lights 1 F8T5 and 1 F13T5 lamp
  • Thermally protected
  • No PCB's
  • 2 year limited manufacturer's warranty

Info & Guides

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Assembled Depth (in.) 
9.5 in 
Assembled Height (in.) 
1.2 in 
Assembled Width (in.) 
2.5 in 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Accessory Type 
Replacement Ballast 
Collection Name 
Color Family 
Input Volts 
Number in Pack 
Number of Lamps 
Product Weight (lb.) 
10 lb 
Required bulb type 
Starting Method 
Instant Start 
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 5.0 out of 5.0 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 5.0 out of 5.0 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 5.0 out of 5.0 by Simple to install Works as expected. Simple to install. Just cut old wires, strip insulation, remove and replace old transformer, connect w. wire twist caps. A 15 minute project. December 12, 2013
Rated 5.0 out of 5.0 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 5.0 out of 5.0 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 4.0 out of 5.0 by Good Value easy to install as replacemnet or as an upgrade for old T12 ballast July 15, 2014
Rated 5.0 out of 5.0 by Great product Ballast was the part needed. Easy install and had light working quickly. June 17, 2014
Rated 5.0 out of 5.0 by What I needed We needed new ballasts and this one was the right one. June 17, 2014
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