CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light

CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light

4024.40.4P  - In Stock

Regular price $149.00 Sale


  • T8 LED tube light that fits into existing 4-ft fluorescent fixtures
  • Use with existing fluorescent fixtures or our LED-ready fixtures
  • Features TriplePlay™ technology - works with both ballast and ballast-bypass fixtures
  • Available in 4000K, 5000K or 6500K
  • Completely flicker-free light output (Learn More)
  • Full spectrum, 95 CRI light quality (Learn More)
  • 18 watt power consumption to replace 32 watt fluorescent lamps
  • 50,000 hour lifetime, backed with a 5-year warranty, ETL listed for safety
  • Not dimmable
  • Product Overview

    Waveform Lighting's CENTRIC DAYLIGHT™ line of T8 LED lamps are an excellent option for improving light quality in indoor spaces. With a 95 CRI rating, these lamps offer full spectrum light quality in daylight calibrated color temperatures that match morning sunshine (4000K), noon sunlight (5000K) or noon daylight (6500K).

    These lamps are completely flicker-free, which means the light is clean and smooth. If you are looking for more natural daylight but are limited by geography, season or window placement, these lamps will give you light that is both healthy and energizing.

    CENTRIC DAYLIGHT™ T8 LED tube lights conveniently work in virtually all 4-ft fluorescent lamp fixtures, making installation quick and easy. The lamps' built-in TriplePlay™ technology automatically detects and adjusts to the fixture's wiring configuration, so you don't have to worry about electrical compatibility.

     

  • Product Specifications

    Specifications Overview
    Color 4000K, 5000K or 6500K
    CRI 95+
    Brightness 1800 lumens per lamp
    Length 4 ft (1.2 m)
    Power 18 Watts
    Connection Style G13 Medium Bi-Pin
    Specification sheet download   Specification Sheet 
    Specification sheet download   4000K Photometric Report
    Specification sheet download   5000K Photometric Report
    Specification sheet download   6500K Photometric Report
    Specification sheet download   IES Report
    Specification sheet download  Tested Ballast List
    Specification sheet download   User Manual

     

  • Fixture Compatibility

    The CENTRIC DAYLIGHT™ T8 LED tube is designed to directly replace 4-ft T8 fluorescent lamps (F32T8), and can be directly installed into an existing 4-ft fluorescent fixture regardless of its configuration. ReadyWire™ technology ensures that the LED lamp will work with your fixture, with or without the fluorescent ballast, and whether or not it is single or double-ended.

    The best way to determine if these lamps will fit and operate in your current fixture is to confirm the specifications of the fluorescent lamp that is currently installed in your fixture.

    First, determine the length of the fluorescent lamp that is currently installed. If it is 4-ft (48") in length and has a 1 inch diameter, you have a T8 4-ft fluorescent lamp, which means that our lamp is compatible. You can also look for a model number or designator on the fluorescent tube: if the code F32T8 is printed on the lamp, this is most likely a compatible fluorescent tube specification.

    For most customers, we recommend simply swapping out the fluorescent lamp with our T8 LED tube, as this approach provides the easiest method. For further information and instructions on rewiring for ballast bypass, please refer to our install guide / user manual.


    Note on Ballast Compatibility: Our T8 lamps are designed to work with almost all T8 fluorescent ballasts. Please see here for a list of ballasts with which we have tested and confirmed compatibility. The T8 LED lamps can also be used without a ballast.

    We recommend removing or bypassing T12 fluorescent ballasts for compatibility reasons.

    Still unsure what type of fixture to use these lamps in? Check out our LED-ready T-8 LED fixtures here.

     

  • Pricing & Ordering Information

    This product is available in packs of 4 lamps or 24 lamps. Please see below for part numbers and corresponding specifications.

    Part Number Specification
    PN 4024.40.4P 4000K / 4-Pack
    PN 4024.40.24P 4000K / 24-Pack
    PN 4024.50.4P 5000K / 4-Pack
    PN 4024.50.24P 5000K / 24-Pack
    PN 4024.65.4P 6500K / 4-Pack
    PN 4024.65.24P 6500K / 24-Pack

     

  • Shipping & Returns

    This item is in stock and typically ships within 1-3 business days. Shipping is free within the USA.

    If you're not 100% satisfied with the performance, color or quality of your product, we'll work with you to make it right.

    Simply contact us within 30 calendar days after delivery and we'll pay for return shipping (USA only) and offer you a full refund.

    See our delivery policy, returns & refunds policy and warranty policy.

Choose Your Daylight

 

Our CENTRIC DAYLIGHT™ bulbs are offered in a range of color temperatures. 4000K provides a warmer, softer white that matches the shade of morning sunshine. 5000K has a more balanced, noon sunlight color, while 6500K provides a crisp, high-energy light similar to what you would see from a north-facing window.

All color options provide 95 CRI, full spectrum light that very closely matches natural light.

 

Choose Your Daylight

 

Our CENTRIC DAYLIGHT™ bulbs are offered in a range of color temperatures. 4000K provides a warmer, softer white that matches the shade of morning sunshine. 5000K has a more balanced, noon sunlight color, while 6500K provides a crisp, high-energy light similar to what you would see from a north-facing window.

All color options provide 95 CRI, full spectrum light that very closely matches natural light.

 

Flicker-Free & Healthy

 

Some LED lights will produce rapid flicker or pulses that aren't immediately visible to the naked eye, which can cause headaches, nausea and eye strain. Our CENTRIC SERIES™ products include additional electrical circuitry to achieve a truly flicker-free light output that produces a comfortable and stable light level. Learn more about flicker here, or watch our video demonstration below.

Easy & Versatile Installation

 

Our T8 LED tube lights feature ReadyWire™ technology. The lamp automatically detects the fixture's electrical connectivity, regardless of ballast and tombstone configuration.

 

Easy & Versatile Installation

 

Our T8 LED tube lights feature ReadyWire™ technology. The lamp automatically detects the fixture's electrical connectivity, regardless of ballast and tombstone configuration.

 





Customer Reviews

Based on 51 reviews
90%
(46)
4%
(2)
2%
(1)
2%
(1)
2%
(1)
J
Jon
Another winner

My only qualm is that I wish there was a 3000k T8 option. Beyond that I love it!

K
K.F.
Great Lights, High Price

Lights were great! No more annoying flicker. Shame about the order quantity tho, needed 6 lights. Either had to buy 4 or 8. So my choice was rock the 2 empty or pay for 2 extra....I chose to rock the two empty for now as times are tough :(

A
Aatu Dorochenko
Excellent product, 5/5

I ended up in choosing the product as I could not find feasible alternative from Europe. It costs quite some bunch of money with shipping and customs but hey, international shipping was available just like that by click and after all I am absolutely fully satisfied with the product. Colour temperature of 5000 K model matches very nicely with my indirect lighting done by 5500 K LED ribbon as well as with the daylight coming from outside. Very fresh result! In the picture tube is installed on three pendant lights at the left side of the picture.

R
Robert Ingram
Cost

I've read all the reviews and literature - they sound great. I need 8 for my office at work, employer would never spring for these. Why so expensive? I get it that they're a quality item, but $150 for a 4-pack of light bulbs? Are there diamonds hidden in the tubes?

D
Daniel Campos
great product

This is a good product. Biologically compatible.

T
Tim Gentner
fantastic

dramatic shift using 6500K compared to regular t8 bulbs. literally from night to daylight!

J
Jennifer Hackett
Flicker and cause immediate pain

I am a strong supporter of Waveform in general because their CENTRIC HOME Flicker-Free A19 10W LED Bulbs and their SUPERWARM 1700K Flicker-Free A19 10W LED Bulbs actually are flicker-free and healthy for me. I strongly encourage everyone to buy those bulbs and to support Waveform since they are making efforts to manufacture flicker-free lighting products. So it is with great disappointment that I have to report that Waveform has missed the mark with the CENTRIC DAYLIGHT Full Spectrum Flicker-Free T8 LED Tube Light. While their flicker is low, these T8 lights are not flicker-free, as evident in the attached photo, showing a flicker meter reading of 2.679%. While the flicker meter software reports a 120 Hz flicker frequency, there are also additional downward spikes in the light output occurring at a 60 Hz frequency, which is even more concerning than 120 Hz flicker from a health perspective. The T8 tubes were installed in a new fixture without a fluorescent ballast in accordance with the setup recommended by Waveform for flicker-free light output. We were testing these lights in an attempt to find truly-flicker free LED lights for commercial use. I experience serious health effects from any light flicker. These lights were immediately painful for me, with the pain intensifying over the course of the next 5-10 minutes, at which point we aborted the test for my safety. Find my review of the existing scientific research into the health effects of light flicker by searching for FlickerSense Health. I have also shared more details of this and other testing. While I cannot speak for all individuals sensitive to flicker, I can report that these lights are not safe for me and our data show that they are not flicker-free. Please, Waveform, create completely flicker-free versions of these lights and please do not use the “flicker-free” label for lights that flicker. Please provide graphs of light output vs. time along with calculated flicker statistics for your products.

UPDATE- Response to Waveform's reply:
I agree that these lights fall under the IEEE 1789 "No Observable Effect" (NOEL) recommendation. While the phrase "No Observable Effect" gives the impression that the recommendation was based on studying the health effects of LED flicker and determining what level of flicker is safe for sensitive individuals, this is not at all the case. Instead, NOEL was based on an estimate of the point at which about half of the individuals in small groups of 10-14 normal observers in 3 studies are consciously aware that they can see light flicker, rather than being consciously unaware that the light flickered [Bullough et al. (2012), Roberts & Wilkins (2012), and Perz et al. (2015)]. People in potentially sensitive groups, like those with migraine, dry eye, or concussion were not included in these studies. The IEEE 1789 NOEL recommendation makes the assumption that if less than half of normal control people can see the flicker, then the flicker won't harm human health. There isn't any scientific basis for this assumption. The IEEE report emphasizes the need for further research, but no mechanism was created to define the parameters of such research, to fund the research, or to provide a way to collect reports of adverse health effects of LED lights from the public. I encourage the lighting community to remember that there are not yet any recommendations for flicker that are based on actual health data for LED flicker. I encourage government agencies to create a mechanism for collecting such health data so that meaningful regulations to protect the public may be created. In the meantime, I beg the lighting industry to voluntarily produce safe, flicker-free lighting. Currently, the lighting industry is benefitting from the fact that devices with flickering LEDs are not regulated like medical devices, requiring safety testing before release to the public, even though flickering light is known to have medical effects for at least a subset of people.

Jennifer, thank you for providing your feedback and sharing your concerns about the flicker performance of this product.

We sincerely regret that this product is not suitable for you, and completely understand the concerns regarding flicker. We are hopeful that through additional engineering efforts, we are able to further improve our products' flicker performance. You should be hearing from a team member shortly with instructions on processing a return and refund for your order.

The flicker measurements you provided (2.7% flicker, 0.004 flicker index) are well within the IEEE Std 1789-2015 recommendations at 120 Hz for 'no adverse biological effects' as well as our own internal standards. We certainly acknowledge the shortcomings and limitations of such generalized standards and of course recognize that each person's response to environmental stimuli is unique and should be respected as such, but do want to provide this important contextual information for our other customers.

We would also like to note that the provided flicker graph (right, in green) has a very zoomed-in y-axis which may give an exaggerated impression of the actual magnitude of flicker modulation. With a 0-100% y-axis scale, we would likely see that the flicker % values you have measured would result in a straight and stable line.

We again appreciate your feedback and apologize that the products did not meet your expectations. Please feel free to reach out to us with any further questions or concerns!

Sincerely,
Waveform Lighting Support Team

d
dennis nelson
Easy Peazy

Simple setup. I bought the plug and play lights to go with. Garage looks and feels like a workshop.

J
Jack Hoyer
Good Color Rendition

The color rendition of the Centrix Daylight 4,000 Kelvin 4 ft.tube lights is very good . I’m currently using one Centrix 4,000K tube light and one Northlux 5,000 Kelvin tube light in the same overhead Waveform 4 ft shop light fixture in my painting studio with good results.

R
Robert Goldman
Lights for studio

These full spectrum tube lights provide excellent lighting very close to natural outdoor light.