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  • Lighting Science Definity - A19 Omni V2 -  Dimmable - 2700K - 60 Watt Replacement
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Lighting Science Definity - A19 Omni V2 - Dimmable - 2700K - 60 Watt Replacement


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  • Dimmable - 2700K
  • 5 Year Warranty
  • Soft White - 2700K
  • No Mercury
  • Instant On, Dimmable
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Product Information

Technical Details
Brand Lighting Science Group
Part Number DFN 19 W27 V2 120
Item Weight8 ounces
Product Dimensions4.3 x 2.3 inches
Item model numberA19 Omni V2 W27
Assembled Length 4.30 inches
Assembled Width 2.30 inches
Shape A19
Voltage 120 volts
Specific Uses General purpose
Fixture Features dimmable
Type of Bulb LED
Base Type E26
Luminous Flux 800
Wattage 13 watts
Incandescent equivalent 60 watts
Bulb Features Dimmable
Color Temperature 2700 Kelvin
Start Up Time Instant
  
Additional Information
ASINB005OKW76G
Best Sellers Rank #238,970 in Home Improvement (See top 100)
Shipping Weight8 ounces
Date First AvailableSeptember 21, 2011
  
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Technical Details

  • dimmable

Product Description

DFN A19 W27 V2Lighting Science Definity A19 E26 BaseDimmable800 Lumens13.5 Watt LED A19 LampWarm White (2700K)50,000 Hour Rated Lamp Life85 CRIMINIMUM ORDER QUANTITY: 6

Customer Reviews

2700k warm light.
anonymous
They actually disperse light about as well as your traditional tungsten bulb (unlike most LED bulbs I have used).
BiologyProfessor
It gives off very nice light and is plenty bright.
Wayne Beech

Most Helpful Customer Reviews

19 of 20 people found the following review helpful By anonymous on October 24, 2011
Verified Purchase
It took me a while to decide which LED light bulb I wanted. First I wanted a 2700k light bulb (2700k is the standard for home light bulbs. Its not white light, it gives a "warm" light) and a bulb that is equivalent to 60W. The current champ is the Phillips 60W bulb that is currently selling for about $39 but Home Depot has finally started selling the same version in its stores for about $27.

So I ordered this bulb, plus I went to Home Depot to pick up the Phillips version. But I did not like the Phillips version because there is a 1/2 sec delay when you flip the switch. When I first tried the Phillips bulb, for a split second I thought it was broke! I couldn't stand the delay, so back to the store it went. I read other reviews on Amazon, and users reported the same thing, but most reviewers weren't bothered by it. But I was.

I also at Home Depot I tried the EcoSmart 60W 3000k bulb (Lighting Science makes these also, so it looks exactly like this one) but the brightness color was too white, almost like my office at work. 2700k color is perfect for the home in my opinion. When i'm at the office, I need white light to keep me awake. At home, i'm trying to relax, not try to burn my retinas.

Heres the pros and cons on the Lighting Science Group bulb:

Pros:
- Instant on brightness. Unlike fluorescent bulbs which take a few minutes to warm up to reach full brightness, LED lights are at full brightness the second you flip the switch! Thats one of the biggest reasons why I went with LED.
- No delay when turning it on. As soon as you flip the switch, the bulb is on, unlike the Phillips LED bulb which has a 1/2 sec delay before it turns on when you flip the switch.
- The price was great! For under $30 you get a nice LED bulb.
- Build quality.
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11 of 11 people found the following review helpful By Tech Dude on September 16, 2012
Verified Purchase
*** UPDATE 06/09/2013 ***

I originally gave this review five-stars, which is deserved. I have since downgraded it to four stars because this bulb appears to have been discontinued and replaced by an even better bulb. It does not appear to be available on Amazon just yet but it's available at Home Depot as the EcoSmart A19 12-Watt (60W) LED Light Bulb; Model # ECS A19 WW 60WE (for the 3000K version, they also have a 2700K version but I do not have the model number). The new Definity Bulb is far better at dispersing "omnidirectional" light than the previous one. The previous one is still excellent, but if you're going to drop this kind of coin on new bulbs, that will be in use for years to come, you should buy the latest-and-greatest. This is particularly true given the rapid innovation in this space.

** ORIGINAL REVIEW 09/2012 **

There is a steadily growing industry around building LED light bulbs like this one. The holy grail for them is to make an inexpensive and energy efficient replacement for the ubiquitous standard 60W light bulb that can be sold to millions, or billions, of customers. To that end, a number of companies have flooded the market and your local home improvement store with LED bulbs touting themselves as the 60W replacement, including Philips, Sylvania (Osram), Toshiba, Samsung and a number of smaller brands.

I've tested almost every one of these bulbs, and the Lighting Science Definity A19 is the one that comes closest to achieving near perfection in an LED bulb and, except for the cost, closest to the goal of a universal 60W replacement bulb. Among its many benefits:

1) Superior Dimming. A number of companies build "dimmable" LED bulbs, but their technologies are simply not ready for prime time.
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7 of 7 people found the following review helpful By Rettee22 on October 3, 2011
I just purchased a few of these bulbs and they're really great! I love the warm lighting much better than CFL's orangey tone, and the dimming is really smooth. I would recommend this bulb to anyone who needs non directional light and amazing dimming.
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5 of 5 people found the following review helpful By Amazon Customer on April 7, 2012
Verified Purchase
My wife and I recently bought a house with recessed lighting in nearly every room, almost all of it on dimmer switches. The lights were power monsters, with big fat halogen bulbs. I set about changing this, and investigating other bulbs.

Th obvious first choice was dimmable CFLs. Unfortunately, the dimming on a dimmable cfl is... Well, it's crap. At the time, I felt that dimmable LEDs were cost prohibitive. Yes, I had heard that the bulbs worked much more nicely than cfls, the dimming effect was much better, you didn't have the light cutting out at a certain voltage, no buzzing like you do with cfls... But come on, it can't be worth that kind of money, can it?

Actually, it is. While the dimming isn't on par with an incandenscent, they're amazing in comparison to cfls. They last pretty much forever, the color of the light is beautiful and warm, the dimming works great, and I'll be replacing all the recessed lightbulbs in my house with these (slowly... They aren't cheap)

Is it worth the cost? Depends. If you don't mind power hungry halogens, keep your halogens. If you want money saving exclusively, go with cfls. If you want lights that dim well, last for ages, have good light color... Well, you're gonna pay for it.
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4 of 4 people found the following review helpful By D. Jones on November 10, 2011
Verified Purchase
I've been buying LED bulbs for some time, in some cases prematurely. Finally there is a bulb that is as bright as advertised, dimmable, and well-made. I'm very happy with these bulbs.
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