0046677425111
Discontinued

Philips

Model # 425116

Internet # 203782126

4 ft. T8 19-Watt Cool White (4100K) Linear LED Light Bulb (2-Pack)-DISCONTINUED

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

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Product Overview

Philips 19-Watt (40-Watt) T8 4 ft. LED Linear Light Bulbs is the ideal replacement for your typical T8 Linear Fluorescent light bulb. It contains no mercury for easy disposal and uses about 45% less energy than your standard Linear Fluorescent light bulb. Philips 19-Watt T8 is ideal for use in garages, workshops and basements and provides a cool, white work-like environment.

  • Brightness: 1650 lumens
  • Estimated yearly energy cost: $2.29 (Based on 3 hrs/day, 11/kWh. Costs depend on rates and use)
  • Life: 36.5years (based on 3 hours/day)
  • Light Appearance: 4000K (cool white)
  • Energy Used: 19-Watts
  • Lumens per Watt: 86.84
  • Uses 71% less energy compared to a standard incandescent light bulb
  • Ideal for use in garages, workshops and basements
  • Contains Mercury: No

Info & Guides

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Specifications

Dimensions

Bulb Diameter (In.) 
1.3 
Product Depth (in.) 
47.24 
Product Height (in.) 
1.18 
Product Width (in.) 
1.18 

Details

Actual Color Temperature (K) 
4000 
Average Life (hours) 
40000 
Bulb Shape 
Linear 
Bulb Type 
Household 
Color Rendering Index 
83 
Indoor/Outdoor 
Indoor 
Light Bulb Base Code 
Bi-Pin 
Light Bulb Features 
No additional features 
Light Bulb Shape Code 
T8 
Light Color 
Other Colors 
Light Output (lumens) 
1650 
Lighting Technology 
LED 
Number in Package 
Returnable 
90-Day 
Shatter Resistant 
No 
Watt Equivalence 
40 
Wattage (watts) 
19 

Warranty / Certifications

ENERGY STAR Certified 
No 
Manufacturer Warranty 
Yes. Please see the "more information" tab for details 

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Customer Questions & Answers

2 Questions22 Answers

Customer Questions & Answers

4 ft. T8 19-Watt Cool White (4100K) Linear LED Light Bulb (2-Pack)-DISCONTINUED
4 ft. T8 19-Watt Cool White (4100K) Linear LED Light Bulb (2-Pack)-DISCONTINUED

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11 answers

I have a 4 bulb florescent light fixture. Does this lamp require 4 LED bulbs or can I reduce it to two when I cut out the starter

This question is from 4 ft. T8 19-Watt Cool White (4100K) Linear LED Light Bulb (2-Pack)-DISCONTINUED
Asked by
PJ
Rhode Island
July 3, 2013
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Answers (11)

February 12, 2014
Answer: 
I am not an electrician, however I see no reason why you couldn't go from 4 bulbs to 2. Since the fixture needs to be rewired regardless, just follow the wiring diagram for a 2 bulb fixture, making sure both of the old ballasts are "unwired".
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February 9, 2014
Answer: 
These tubs require you to bypass your ballast (and starter) to be wired directly to 120V. Since you have to rewire anyway you could easily install only 2 tubes (but you'd have half the light).
Also note that the wiring for these bulbs is in parallel, so even if you wire for 4 tubes, you could remove any that you want, and the remaining tubes will still run normally.
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Asked by
South Milwaukee, WI, USA
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January 11, 2014
Answer: 
Yes, you can reduce the number of lamps. Just remember, you will also be reducing the brightness at the same time. Because of the way the lamps work, you can have any number from 4 to 1 lamp in you fixture. If you had a fixture that took more then 4 lamps, you could also convert that.
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Asked by
South Hill, WA, USA
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January 3, 2014
Answer: 
Yes, I don't see why not. the instructions show one to four bulbs. You are just connecting all the + ends together and the other top pin - together and each tube itself must be looped for the second pin end to end. So do it however 1, 2, 3 or 7, it's like wiring outlets off the breaker +/- each to there own side. the only difference here, again is the - pin marked on one end is looped to the same pin on Read More
Yes, I don't see why not. the instructions show one to four bulbs. You are just connecting all the + ends together and the other top pin - together and each tube itself must be looped for the second pin end to end. So do it however 1, 2, 3 or 7, it's like wiring outlets off the breaker +/- each to there own side. the only difference here, again is the - pin marked on one end is looped to the same pin on the other end for each tube. Piece of cake. Read Less
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December 31, 2013
Answer: 
When you rewire the fixture you can wire it for 1 bulb, 2, 3 or 4. The bulbs are just wired directly to the 120v AC.
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Asked by
Warrenton, VA, USA
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December 26, 2013
Answer: 
These bulbs require a complete re-wire of the fixture. Make sure you have un-shunted G13 sockets. You can reduce the number of bulbs/sockets during the re-wiring process.
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Asked by
North Dartmouth, Dartmouth, MA 02747, USA
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December 24, 2013
Answer: 
NO, I believe you can use two light bulbs. Follow directions to modify light fixture but only hook up two sets of lamp holders on light fixture instead of all four sets of lamp holders. Two on each end of light fixture.
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Asked by
Greeley, CO, USA
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September 23, 2013
Answer: 
You can use only 2 lamps as they are quite bright. You MUST disconnect the ballasts and wire the lamps directly to the 120V AC line.
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Asked by
Read all my Q&A
September 4, 2013
Answer: 
One, Two, Three your pick. The wiring diagram suggests that each bulb be connected independently. So you only need to make sure you have a positive and negative on each bulb.
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Asked by
RainMan
July 10, 2013
Answer: 
I found I could easily wire all of socket sets with using the following (or similar) product:
Ideal 10-Piece In-Sure Push-In Wire Connector Set - Store SKU # 631058
You may need some additional wire. Populate the bulbs to suit your preference.
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Asked by
VPOd
July 9, 2013
Answer: 
It should be fine with two. It depends on your personal preference.
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11 answers

When replacing a standard flourescent linear bulb w/item 425116 does the ballast need to be removed?

This question is from 4 ft. T8 19-Watt Cool White (4100K) Linear LED Light Bulb (2-Pack)-DISCONTINUED
Asked by
Quinby
CT
May 20, 2013
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Answers (11)

February 12, 2014
Answer: 
It technically does not have to be removed, but it does have to be "unwired". Directions show cutting all the wires from the ballast and rewiring the tombstones. This allows the ballast contained within the LED bulb itself to function properly. The ballast can remain in the fixture but it is not hooked to anything. It was a bigger deal than I anticipated but it is doable.
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February 9, 2014
Answer: 
Yes, you must remove the ballast and rewire to hook these up directly to 120V:
- One pin on one end of each tube goes to hot.
- The matching pin on the other end of each tube goes to neutral.
- The remaining pin pair must be shorted together (so you'll need a little over 4' of wire per tube for this short.
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Asked by
South Milwaukee, WI, USA
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January 11, 2014
Answer: 
The ballast must be disconnected. You can leave it in the fixture or remove it. As long as you disconnect all the wires, it does not matter.
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Asked by
Tamarac, Florida
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January 5, 2014
Answer: 
Hello: you don't have to physically remove the Ballast, but you have to cut the wires coming out of the Ballast--you can use some of this wiring for the following steps: You do have to connect the HOT (Black or RED) wire from the AC source to one of the wires going to the Lampholder Socket (these wires are color-coded, usually blue and red, black and red, black and white or some combination of these). Read More
Hello: you don't have to physically remove the Ballast, but you have to cut the wires coming out of the Ballast--you can use some of this wiring for the following steps: You do have to connect the HOT (Black or RED) wire from the AC source to one of the wires going to the Lampholder Socket (these wires are color-coded, usually blue and red, black and red, black and white or some combination of these). (1) Choose ONE of the colors and connect the HOT wire to it with a Wire Nut; (2) on the OPPOSITE lampholder Socket connect the NEUTRAL (White) wire to the SAME color wire from the Lampholder Socket; you will then have two OPPOSING Lampholder Sockets with the same color wire that is not CURRENTLY connected to anything--connect these two SAME color Lampholder Wires TOGETHER using some of the wiring that you previously cut off from the Ballast. BTW the box that the LED Bulbs comes in has an Instruction Sheet that will show you these steps in detail. Read Less
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Asked by
South Hill, WA, USA
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January 3, 2014
Answer: 
I removed all that stuff, as you remove or cut the wire off the ballast. So there's no reason they need to stay in.
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December 31, 2013
Answer: 
These bulbs require that you rewire the fixture. Two of the pins are wired directly to the 120v ac and the other two pins are wired together. This bypasses the ballast, you could physically leave it in there if that's easier.
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Asked by
Warrenton, VA, USA
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December 26, 2013
Answer: 
These bulbs require a complete re-wire of the fixture and the removal of the ballast. You must have un-shunted G13 sockets in order to do the rewiring. You can order them online if needed. You may also need additional wire for the procedure. Go to the manufacturer website and read the install directions first, then look at your fixture to see if it is compatible, and if not, are you willing to order the Read More
These bulbs require a complete re-wire of the fixture and the removal of the ballast. You must have un-shunted G13 sockets in order to do the rewiring. You can order them online if needed. You may also need additional wire for the procedure. Go to the manufacturer website and read the install directions first, then look at your fixture to see if it is compatible, and if not, are you willing to order the extra parts needed for the conversion. Read Less
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Asked by
North Dartmouth, Dartmouth, MA 02747, USA
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December 24, 2013
Answer: 
Yes, light fixture has to be modified to work with LED bulbs according to instructions. The wiring going to ballast has to be cut but you can probably leave ballast in fixture without being connected to any of the lamp holders.
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Asked by
Read all my Q&A
September 4, 2013
Answer: 
Yes you need to remove the ballast. Cut the wire so that you leave wire behind to connect it to the sockets. Do no over cut the wire or you will have no way to connect the electricity to the connectors. if the ballast is still good it can be used in another fixture.
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Asked by
VPOd
July 9, 2013
Answer: 
It needs to be rewired without the ballast. Best to remove it. Makes them weigh less.
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Asked by
Philips Lighting North America HQ
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May 21, 2013
Answer: 
When replacing a standard linear flourescent with product 425116, one must re-wire the TL fixture so that the mains voltage is directed to each end. After proper installation, the ballast is no longer required. See a link to our quick installation guide for more detailed instructions .
T8 LED Installation Guide: Read More
When replacing a standard linear flourescent with product 425116, one must re-wire the TL fixture so that the mains voltage is directed to each end. After proper installation, the ballast is no longer required. See a link to our quick installation guide for more detailed instructions .
T8 LED Installation Guide: http://www.usa.lighting.philips.com/pwc_li/us_en/lightcommunity/trends/tled/assets/LED-T8-Tube-Installation-Guide_Feb2013.pdf Read Less
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Customer Reviews

Rated 4.1 out of 5 by 16 reviewers.
Rated 4.0 out of 5.0 by Great bulb, perfect match to Florescent color and brightness These LED bulbs come on instantly at full brightness. No more buzzing or flickering. They work well at cold garage temperatures. The color and light intensity is a perfect match for a 4100k 40w florescent bulb. The bulb consists of two rows of LEDs spaces about 1/2" apart, it is not possible to distinguish the individual LEDs when the bulb is on, making it appear the same as a florescent bulb. To use these bulbs, the existing fixture needs to be rewired. Just cut out the ballast and wire directly to the sockets according to the wiring diagram. This is not hard to do with a few wire nuts and some spare 14 gauge wire. If possible remove the fixture from the ceiling and work at ground level. Now for the cost analysis. The cost per bulb is about $50. This is very high. A 40w florescent tube is about $4. The energy savings is high, about 50%, but at 10 times the cost. Electricity for tier 3 in California is about $0.25 per kilowatt-hour. If the bulb is on for 4 hours per day 365 days per year the savings is only $7 per year. This is too long of a payout and you will have to justify these bulbs on their other attributes like instant on at full brightness. In my garage I have 6 more florescent tubes to replace and it's difficult to spend $300 just to have lights that don't flicker for the first few seconds. As the first product of its kind, these bulbs are great. As the price for LED's come down, this is the way to go. December 31, 2013
Rated 3.0 out of 5.0 by Led Bulb for Fluorescent Retrofit Phillips continues to be on the cutting edge in the lighting industries push towards LED. They are just coming out with a true "replacement LED" called INSTANTFIT. The INSTANTFIT LED Bulb uses the existing ballast in your fixture and requires no rewiring. This bulb that I am reviewing is NOT the INSTANTFIT model and requires rewiring the fixture. (Because the LED bulb has its' own ballast). My fixture was newer and did not have the older "tombstones" on each end that accepted two wires each. Therefore my wiring retrofit was quite challenging and not worth the 26 watts that I saved versus using the fluorescent. I would not recommend this bulb only because I think it would be well worth waiting until the stores carry the INSTANTFIT model, Unless you or a family member is an electrician. February 12, 2014
Rated 4.0 out of 5.0 by Not a drop-in replacement. For me, these lamps were a good choice. I have a detached garage, and it tends to get a bit cold in the winter. That is not a problem for these lamps. They light right up when it is below zero. The only disadvantage to these lamps is that you can not just remove the old lamps and put these in. You have to rewire the fixture, disconnecting or removing the ballast, and wiring the lamps with a line voltage feed. If you have a fixture that needs the ballast replaced, it is an ideal candidate for conversion to these lamps. Not needing to buy the ballast helps defray the initial cost of the lamps, and the savings in electricity more then cover the rest of the cost. If you are comfortable rewiring a fixture, or have someone that can rewire it for you, this is the way to go! January 11, 2014
Rated 5.0 out of 5.0 by Better than expected I ordered only two of these and wish I had ordered 4. These lights are bright and compare well to T8 bulbs that are rated at 37 watts. I had two Philips 37 watt bulbs and now I have two Philips LED T8 Bulbs that give off a little bit more light and use only 38 watts as apposed to 74 watts. Nice investment. By the way use a multi meter to make sure you wired the positive and negative properly before installing. The whole installation took me 20 minutes with wire cutters, screwdriver and a ladder. September 4, 2013
Rated 2.0 out of 5.0 by A lot of hype to sort through for a lot of money The instant on - no flicker or buzz is great, as is the cold operation versus fluorescent. Downside is that the efficiency of this is 86Lumen/watt. The WORST Fluorescent that is legal for sale in the USA is 89 Lumens/watt!! The supposed Energy savings is because the lamps are only 1/2 as bright as T8. I get T8 product at 3100 lumens, These generate only 1650. If that is the way to save energy just leave 1/2 your lights off and get the same result January 10, 2014
Rated 5.0 out of 5.0 by Very bright, even light.. Both of the ballasts in my fixture were burned out and it was time to change to these bulbs. I didn't see why a meter would be necessary to check polarity on the AC line as mentioned by another reviewer. Perhaps he was using the LED ballasts, which I did not. Not sure why they would even be needed. Packaging was very good, if not overdone and shipping was prompt. Good product and service. September 23, 2013
Rated 3.0 out of 5.0 by PRETTY DISAPPOINTED The Philips T8 LED linear light bulbs look like a good way to save electricity when read description. When received bulbs and read instructions, I found out that the ballast in light fixture/shop light has to be modified for LED light bulbs to work, and then you can not go back to using fluorescent bulbs. One of he bulbs shipped to me was damaged when I took it out of box. December 24, 2013
Rated 2.0 out of 5.0 by Product is OK Provides less light than LED T-12 tubes. Re-wiring required is more difficult than competitive products. Installation instructions are good, but you must call online customer service to get the instructions instead of providing them with the product or making them available to the customer online. January 29, 2014
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