CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb
CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb

CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb

4005C.40  - In Stock

Regular price $18.00 Sale

  • Available in 4000K, 5000K or 6500K
  • Completely flicker-free light output (Learn More)
  • Full spectrum, 95 CRI light quality (Learn More)
  • Compatible with global voltage input (AC90-240V/50-60Hz)
  • Conveniently screws into any standard E26 or E27 Edison socket
  • 10 Watt power consumption
  • 800 lumens - equivalent to a 60W incandescent bulb
  • Not dimmable, not suitable for enclosed fixtures
  • 25,000 hours lifetime, 3 year warranty

Looking for a brighter version? See our 1600 lumen (100 watt eq) bulb here!

  • Product Overview

    Waveform Lighting's CENTRIC™ line of LED bulbs provides lighting that centers around you. CENTRIC DAYLIGHT™ LED bulbs provides 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 bulbs 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.

    With a 4000K/5000K/6500K 95 CRI rating and a high R9 of 80+, the light spectrum emitted by CENTRIC DAYLIGHT™ bulbs is a full and complete spectrum that provides bright, white light that matches morning sunshine (4000K), noon sunlight (5000K) or noon daylight (6500K).

     

  • Product Specifications

    Specifications Overview
    Color 4000K, 5000K or 6500K
    CRI (Ra) 95+
    CRI R9 80+
    Brightness 800 lumens (60W equiv)
    Voltage AC90-240V, 50-60 Hz
    Power 10 watts
    Installation E26 or E27 (Medium Edison Screw)
    Specification sheet download   Specification Sheet 
    Specification sheet download   4000K Photometric Report
    Specification sheet download   5000K Photometric Report
    Specification sheet download   6500K Photometric Report
  • Installation

    This product is a standard A19 LED screw-in lamp designed to work in virtually all lamp fixtures, including those designed for traditional incandescent or CFL lamps.

    The lamp has an industry-standard E26 base, which is the ubiquitous, approximately 1-inch wide, screw-base.

    The lamp emits the equivalent brightness of a 60 watt incandescent bulb, but only consumes 10 watts. You may find that your lamp fixture has a warning regarding the maximum wattage permitted per socket. Use the 10 watt value, and not the 60 watt equivalency value, in confirming compatibility.



  • Pricing & Ordering Information

    Listed pricing is per one bulb (1-pack) or six bulbs (6-pack). Please see below for part numbers and corresponding specifications.

    Part Number Specification
    PN 4005C.40 4000K
    PN 4005C.50 5000K
    PN 4005C.65 6500K
  • 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.

Full Spectrum & 95 CRI

CENTRIC DAYLIGHT products offer true full spectrum light, as measured by the Color Rendering Index (CRI) and CRI R9 metrics. With a 95 CRI, 80+ R9 rating, our lamps offer the closest reproduction of natural light in the industry.




  • Frequently Asked Questions

    • 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.



    • Do these bulbs 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 bulbs should I install in my space?

      We generally recommend using one bulb for every 10 square feet of space. Simply divide the square footage of your space by 10 to get the number of bulbs needed. For example, a 50 square foot area would require 50 divided by 10, or 5 bulbs.

      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.



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

      These bulbs 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.



    • Are these bulbs dimmable?

      Unfortunately, these bulbs 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 bulbs emit any UV radiation?

      These bulbs 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).



    • What kind of lamp fixture can this product be used in?

      These A19 bulbs have a standard screw-in base (E26 / E27), which is the same type that has been used for more than a century.

      As long as the lamp fixture is designated for an A type or A19 type, these bulbs will be compatible.

      Although these lamps have the brightness of 60 watt incandescent lamps, these lamps have an actual power draw of only 10 watts. Therefore, they can safely be used in fixtures that have a max rating of less than 60 watts.



       
    • What is the voltage range of these lamps? 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.

Customer Reviews

Based on 105 reviews
94%
(99)
3%
(3)
1%
(1)
2%
(2)
0%
(0)
T
Tommy H
Great lighting

It feels much calmer for me when i turn on these lights. They really are different than the ones i usually get at lowes or home Depot

R
Rob
Nice Bulbs

They are very bright and in a quite white spectrum which are perfect for my garage above my workbench.

A
Anonymous
Quality Bulb

We got the 5000K bulb to test out a daylight color in a bathroom for applying makeup, etc. The light quality is excellent and for all practical purposes the same as the light coming in the small window nearby.

I usually find daylight color temperature bulbs to be harsh and unpleasant, but these higher CRI bulbs are quite pleasant for daytime illumination.

D
Dlan
Peace of mind

After a long search for lightbulbs that are actually healthy I finally found them! So happy with the light quality and customer service.

N
Nick L
Excellent Quality Light

Bought these for the house, and they are much higher quality light compared to the Cree ones from Home Depot. Ended up also buying some of the T8 bulbs for my office and it's greatly reduced eyestrain.

E
Evan W
Great but not perfect…

Great but not perfect Color temperature. My one and only complaint with this light is the color temperature is far too cool/blue for 4000 K. It’s closer to 5000 K than it is to 4000 K. However this does not prevent me from using or enjoying these lightbulbs. The color accuracy from unit to unit, I bought a pack of six, is perfect. I have not experienced any flickering, cutting in and out, or weird color tint issues.

I’ve used and worked with several different LED lights over the years. Some varying from very expensive studio video quality LEDs to off-the-shelf from the local hardware store household bulbs. These are by far and away the best home use LED bulbs I’ve come across in both color consistency from bulb to bulb and a good color tint, having a wide spectrum of colors in that light. Typically with LED bulbs from big box stores or the local hardware store, that I’ve come across, the LEDs have wild and obvious color shift/tint issues. The light will give off a strong green or magenta cast to the color temperature. For example a warmer light will have a strong green tint giving a weird color cast to your room and decor.

I’ve owned several different waveform bulbs at this point, and I’ve been happy with all of them. They all are still working and I’ve owned some for up to three years now with no issues.

To wrap up and to touch on it again, the only issue I had with these particular lights was the more blue/cool in their color temperature then a true 4000K as advertised. But the quality of that light is excellent even if it is a little bit more blue than I expected.

I would definitely recommend these if you don’t mind the color to be more on the cooler side than neutral/slightly warm. If you’re OK with that these are a great choice.

G
Gabriele Milan
Great bulb

This bulb is wonderful, as all the products I've purchased from Waveform. You cannot beat their customer service.

D
Deborah Sharrock
Nice and bright!

I see these bulbs like a investment in a supplement for our health, especially in the winter. I got a 6 pack of 4000K bulbs and placed them in our overhead lighting throughout the house. I love them! I am a stay at home homeschooling mom and having an energizing environment for me and my kiddos (that also supports our hormone health) feels important. I love the clarity of colors with these lights as well.

J
Jason
Great bulb

I was looking for a light with these exact specs and it didn't disappoint. I don't know of anyone else that's sells an A19 like this. It's great.

B
Benji P.
Great Quality

These 10W, 5000K, flicker free bulbs work great for my office. They provide bright, vibrant, full spectrum light and my plants love them as well. I even have 1 bulb in a lamp over my betta tank & the aqua plants are thriving.