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CENTRIC DAYLIGHT™ 95 CRI T5 LED Linear Light Fixture

CENTRIC DAYLIGHT™ 95 CRI T5 LED Linear Light Fixture

PART NUMBER 4026.2F.40 | In stock

Regular price $39.00 USD
Regular price Sale price $39.00 USD
Sale Sold out
  • Full spectrum, integrated LED light fixture with simple power cord and plug-in installation - no separate fixture, bulb, housing, power supplies, drivers or ballasts needed.
  • Mount onto virtually any surface using included screws or magnets. 
  • Ultra-high 95 CRI, R9 > 90; available in 4000K, 5000K or 6500K
  • Completely flicker-free light output
  • Available in 2-ft (9 watt / 900 lumens) and 4-ft (18 watt / 1800 lumens) configurations
  • Daisy-chain multiple fixtures together using included cord
  • ETL listed for safety

Product Description

Waveform Lighting's CENTRIC™ line of LED lights provides lighting that centers around you. CENTRIC DAYLIGHT™ T5 linear light fixtures provide light output that is free of optical flicker and a full spectrum color that approximates that of natural daylight. If you are looking for more natural daylight but are limited by geography, season or window placement, these lights will give you light that is both healthy and energizing.

Flicker-free light output means that the rays of light emitted by the bulb are constant and uninterrupted, so you can rest assured knowing that the negative health effects such as headaches, fatigue and eye strain - previously associated with artificial lighting such as fluorescent lights and early LED bulbs - are eliminated.

The CENTRIC DAYLIGHT™ T5 LED linear light fixtures are integrated light fixtures that operate from any standard AC 120 - 277 volt power outlet. No need to worry about fixture compatibility, ballasts, drivers or anything else - simply plug the lamp in and you'll be up and running in seconds!

Included are accessories for mounting via magnets or screws, allowing for installation in a wide variety of locations such as trusses, crossbeams, rafters or old fixtures for general area lighting, or under wall-cabinets or inside workstation fixtures for task-oriented and localized lighting.

Product Specifications

Color Temperature Options:

  • 4000K
  • 5000K
  • 6500K

CRI (Ra): 95+
CRI R9: 80+
Brightness: 900 lumens (2-ft) / 1800 lumens (4-ft)
Voltage: AC 120-277 V / 50-60 Hz
Power: 9.0 watts (2-ft) / 18.0watts (4-ft)
Installation: Standard 2-prong plug

Pricing & Ordering Information

This product is available in packs of 1 light fixture or 4 light fixtures. Please see below for part numbers and corresponding specifications.

PN 4026.40.2F: 4000K, 2-ft, 1-pack
PN 4026.50.2F: 5000K, 2-ft, 1-pack
PN 4026.65.2F: 6500K, 2-ft, 1-pack
PN 4026.40.4F: 4000K, 4-ft, 1-pack
PN 4026.50.4F: 5000K, 4-ft, 1-pack
PN 4026.65.4F: 6500K, 4-ft, 1-pack
PN 4026.40.2F.4P: 4000K, 2-ft, 4-pack
PN 4026.50.2F.4P: 5000K, 2-ft, 4-pack
PN 4026.65.2F.4P: 6500K, 2-ft, 4-pack
PN 4026.40.4F.4P: 4000K, 4-ft, 4-pack
PN 4026.50.4F.4P: 5000K, 4-ft, 4-pack
PN 4026.65.4F.4P: 6500K, 4-ft, 4-pack

Shipping & Returns

This item is in stock and typically ships within 1-3 business days. Shipping is free within the USA for orders over $50.

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.

Product Disclaimers

This product is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease. Read more...

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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.


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.

Learn More

Flicker-Free Demonstration Video

Frequently Asked Questions About this Product


What is the difference between 4000K, 5000K and 6500K?

These color temperature options correspond to the various shades of natural light. 4000K is similar to the warmer and softer shade of morning sunshine. 5000K approximates the bright sun during mid-day, while 6500K is most similar to the crisp, blue color of the sky.

The choice between these colors is completely up to you! There is no correct answer, and this is a question of preference.

Regardless of your choice, all color options feature 95 CRI and flicker-free light output, which will provide you with all of the benefits of full-spectrum light.

Below are some articles that go into further detail:

Difference Between 5000K and 6500K

An In-Depth Look at 4000K

4 Things to Consider Before Buying 6500K Bulbs

Still not sure? Take advantage of our 30 day free-returns policy to try out the different colors. If you don't like it, simply let us know and we'll send over a return label.

Should I get warm white (2700K or 3000K) bulbs instead?

The most popular color temperature option for home and residential use is either 2700K or 3000K, commonly labeled warm white. These are the color temperatures that match the warm and inviting glow of traditional incandescent bulbs. 

Keep in mind that the CENTRIC DAYLIGHT™ product does not feature warm white color temperatures, but daylight white colors, designed to match natural light, and not incandescent bulb colors. You will find them to be more of a true white color, providing you with light that is crisp and energizing. You may also find that they do not "mesh" well aesthetically with other warm white bulbs in your home.

If you're looking for a bulb that produces a softer, incandescent-like glow, we would recommend our CENTRIC HOME™ product line, which offers the same 95 CRI and flicker-free performance but with warm-white color temperatures.

Can the 2-ft and 4-ft versions be mixed together?

Yes! Both the 2-ft and 4-ft versions can be mixed together in the same daisy-chain run. The maximum run is 70 feet (21 meters).

Are these lights good for visual arts, scientific or industrial applications?

These lights are a great fit for many applications that require a simulation of natural daylight.

For technical or visual arts applications that depend on visual assessment and a closer adherence to international standards such as D50 and D65, we recommend our NorthLux™ Series A19 LED lamps.

Do these lights emit blue light?

Yes, they do!

You may have read or heard about the concerns regarding the blue light hazard. Excessive blue light exposure during evening hours is certainly a concern, but blue light is an essential and important part of our daily lives, as it is extremely abundant in natural daylight (the blue sky!) and an important signal to our bodies and circadian rhythms.

CENTRIC DAYLIGHT™ bulbs are the industry's best approximation of natural daylight (95 CRI), and therefore contain similar relative levels of blue light in the spectrum as natural light.

You can think of these bulbs as mini suns that you can turn on and off at the flip of a switch. If you are concerned about blue light during evening hours and the potential impact on your sleep, we would not recommend using these bulbs at night when the actual sun has already set.

During the daytime, however, these bulbs are an excellent way to supplement or substitute for natural light.

How many lights should I install in my space?

We generally recommend installing 1 ft worth (450 lumens) of these linear lights for every 5 square feet of space. Simply divide the square footage of your space by 5 to get the number of bulbs needed. For example, a 80 square foot area would require 80 divided by 5, or 16 feet of linear lights. A 4-pack of our 4-ft light fixtures would be a perfect fit for an installation location of this size.

While this may seem like a lot of brightness, do keep in mind that daylight color temperatures generally require a higher level of brightness for comfort due to a phenomenon described by the Kruithof curve.

For more guidance, we recommend checking out our lumen estimation calculator.

Are these lights dimmable?

Unfortunately, these lights are not dimmable. This means that they cannot be used on any electrical circuit which has a dimmer installed, even if you keep the dimmer at the maximum setting at all times.

Do these lights emit any UV radiation?

These lights do not emit any ultraviolet radiation. The light output covers the entire visible spectrum between 420 nanometers and 800 nanometers, but does not go below (UV-A) or above (infrared).

Do I need a separate light fixture for this product?

These T5 linear light fixtures do not require any other housing or light fixtures for use. Simply mount them using the included magnets or screws, and plug the fixture into a standard wall outlet.

What is the voltage range of these lights? Can they be used overseas?

The voltage range of this product is AC 90-240V and 50-60 Hz, which covers all global voltages. As such, they can safely be used internationally without any issues. The internal circuitry adjusts for the input voltage automatically, and does not affect the light output or performance of the lamp. The light fixtures use a standard North American two-prong plug, so international locations may require a plug adapter.

Customer Reviews

Based on 36 reviews
4000k fixture

Working perfectly for close to 2 years.
Coming back for more

terrible packaging practices

Just received my replacement set of fixtures, the first set had various defects and damage due partly to a complete lack of any protective material around the products, ie bubble wrap or similar to protect against impacts and vibration, which resulted in damage during transport.

Now I specifically asked that the replacement be sent with what amounts to probably not even 20 cent worth of bubble wrap ( on a 65 USD shipping tab), but no can do, the replacements where sent exactly in the same manner as the first order, with no protection whatsoever.

Conclusion, their shipping department doesn't give a damn about transport damage, I remember a time a few years back when their products where wrapped in bubble wrap, no questions asked, then came paper bubble wrap, still ok, and now nothing, just the products in a cardboard box, tumbling around a thousand times during shipping, and we're supposed to just accept those even though they are an electrical fire hazard.

I will edit my review if Waveform takes some measures to make this right, as this is a shame for a company that makes the best bulbs in the world.

Ken Thorn
Perfect solution for clothes closet

I have "lean in" style closets that needed lighting. These fixtures were light weight so could be mounted effortlessly, anywhere (without having to find stud). The 4000k and high CRI is perfect for illuminating clothing and shoes. They have a nice little on/off rocker switch, although I connected them to a motion-sensor controlled outlet. They are a reasonable price too. Highly recommended.

Laboratory grade lighting for color accurate requirements.

After pricing out all the options and assessing the specifications and flexibility of other competing systems, waveform lighting wins on all accounts individually as well as comprehensively. I will be buying dozens more of these down the road when I build a new warehouse and lab space. I love that their color is consistent across their whole line so I could get some of the smaller tubes for each workstation and it matches the overhead ceiling tubes.

Wonderful lights for my basement art studio.

I originally bought 5000k lights but after having them for a week realized they were just too cool for my liking. I ordered the 4000k and other give the slightly different light that my eyes like when I paint. Now ordering the additional lights I need in the 4000k.
The customer service people at Waveform are amazing! Helpful, responsive, knowledgeable, respectful, and kind. Five Stars for them! And Five Stars for a great product!

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