Philips RELB2S40N35I, Ballast 2 Bulb Electronic T-12
$21.94
- Energy Efficient: Maximizes energy savings and reduces electricity bills
- High Performance: Provides consistent, flicker-free lighting for T-12 fluorescent bulbs
- Easy Installation: Quick setup compatible with standard T-12 fixtures
- Environmentally Friendly: Promotes energy efficiency and longer bulb life
- Versatile Application: Suitable for residential and commercial settings, including offices and schools
- Safety Features: Includes overcurrent protection and thermal management for safe operation
- Product Dimensions: 10 x 2 x 2 inches; weighs 11.36 ounces
Actual PhD –
I have a finished garage with a spackled and painted ceiling and inset florescent light fixtures.
One of six fixtures had a failed ballast and replacing it with one from a big box store resulted in that one failing too as well as it could not run LED tubes.
I bought this ballast to pair with Philips univeral LED 4 foot tubes (2 in each fixture).
Installation was easy as the wires were all color coded and matched perfectly and the unit has now been working with the LED tubes for about three weeks.
If I encounter any longevity issue I will edit this but so far I am fully satisfied.
Sylvia –
My kitchen has light again
W –
Compared to the GE OEM ballast, It was narrower and the yellow wires come from the end with the blue and red. I just reconnected color to color and worked. Also competitively priced.
Time Lord –
Although the item I ordered was advertised as a “Philips RELB2S40N, Ballast 2 Bulb Electronic T-12”, the item I received was identified as “ADVANCE Ambistar RELB2S40N”. a moot point perhaps because the Model identification is the same. It readily fit into a new set of sockets for T8, T10 or T12 tubes, in my original double-tube fixture. It works perfectly! (Actually, I ordered 2 of these as I have a few other double-tube fixtures in my basement, and 6 spare T12 tubes, which I purchased back in 2015!) No sense switching over to the newer T8’s or LEDs at this point, electricity savings aside. T12-capable ballasts are becoming harder to find, hence the extra one.
roblaux –
My fluorescent light was getting slow to come on, and I replaced the bulbs. The new bulbs worked better, but they were still a bit slow. I was not up to replacing the fixture with a new LED light, especially since I just bought new fluorescent bulbs. I decided to try replacing the ballasts, and the “Philips RELB2S40N35I, Ballast 2 Bulb Electronic T-12” worked great!
Installation is easy. Be sure to turn off the power to your light fixture at your breaker box. Cut the wires on your old ballasts leaving some wire there to attach your new ballast to. Unscrew your old ballast and install the new one. I cut mine about in half. The wires on the new ballast were plenty long to reach the appropriate locations in my fixture. Just match up the wire colors from your fixture to the ballast, strip the wires back a bit, and attach them with some wire nuts. The wire nuts were not included. It does not matter which color wire goes to which side (Polarity), only that the colors match. Tie up your hanging wires, attach the shield, install the bulbs, turn on your breaker, and let the light shine!
K. Nguyen –
– Wiring was a bit of work, but Ok
– Red to red, blue to blue and Y to Y, not need for any particular Red or Y or B
– Work with old bulks AND the new Philips LED from the local beloved big store
– IS is for Rapid Start , supposedly for short on and off usage as in basement, claims to save bulb and ballast life. I bought these
– PS is for programmed start, for 10+ hours on at a time.
Amazon Customer –
Undersized but fit perfectly. The value compared to trying to find the exact original very good. Wires are Thames color as original
Amazon Customer –
Great worked well with our old light fixture
Kays –
This ballast replaced a 20 year old magnetic ballast in an otherwise working ceiling fixture, and it worked perfectly. It’s a fraction of the weight and much smaller, but the length is such that it fit in the standard sized screw-down receptacle with ease. Almost a perfect drop-in replacement, no more hum. It does not include wire caps, so make sure you have some or order some, if you have to retrofit.
Amazon shipped mine loose in a plastic bag, causing the ends to be bent up rather badly in transit, but I was able to straighten them back out with pliers; no point returning it for a replacement, they would have just sent another one the exact same way with the same results anyway. They don’t care.
Note that these ballasts are now about 50% more expensive than they were in previous years, thanks to inflation, and are even more expensive elsewhere, especially locally.
Time Lord –
Fairly easy to install and works great
ATC123 –
Everything is colour coded so it was dead simple to install and likely took no more than 10 minutes to do. Worked perfectly. Not able to find T-12 ballasts locally, so it is great to have a simple solution to sourcing them.
SeattleJuan –
This was a wire for wire replacement for some old magnetic ballasts in several ceiling fixtures. I needed to update the ballast to allow LED tubes to work in the fixture as they weren’t compatible with the old ballast. Easy to install and the whole job took about an hour from disassembly to power back on.
Neil J –
Had to replace two ballasts in a four-bulb (T12, 40W) fixture. Quite simple, just have to cut and wire nut all the new connecting wires to the old wires by color code (doesn’t matter which red goes to which red, etc, as long as they connect to the same set of wires as the old ballast for my two-ballast fixture). Bit of a pain to do it overhead but not hard. When I first turned the light switch on I had a “pop” and one bulb went out, but I had noticed the end of that bulb was black, also another bulb was dim. Then replaced all four bulbs and works great. Read somewhere you should replace all the bulbs when putting in new ballast, appears to be true in my case.