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CENTRIC HOME™ Flicker-Free A21 15W LED Bulb

CENTRIC HOME™ Flicker-Free A21 15W LED Bulb

PART NUMBER 4006.30 | In stock

Regular price $29.00 USD
Regular price Sale price $29.00 USD
Sale Sold out
  • Available in 2700K or 3000K
  • 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 Edison socket
  • 15 Watt power consumption
  • 1600 lumens - equivalent to a 100W incandescent bulb
  • Not dimmable, not suitable for enclosed fixtures
  • 25,000 hours lifetime, 3 year warranty

Notice: This item cannot ship to California. (Why not?)

Product Description

Waveform Lighting's popular CENTRIC HOME™ LED bulbs are now available in a brighter, 100 watt-equivalent version!

CENTRIC HOME™ LED bulbs provides flicker-free light output with a full spectrum color that is warm and relaxing - perfect for home and residential applications.

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 2700K/3000K 95 CRI rating and a high R9 of 80+, the light spectrum emitted by CENTRIC HOME™ bulbs is a full and complete spectrum without the bright, bluish hues commonly associated with energy efficient bulbs.

Product Specifications

Color Temperature Options:

  • 2700K
  • 3000K

CRI (Ra): 95+
CRI R9: 80+
Brightness: 1600 lumens (100W eq)
Voltage: AC90-240V, 50-60 Hz
Power: 15.0 watts
Installation: E26 (Medium Edison Screw)


This product is a standard A21 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 100 watt incandescent bulb, but only consumes 15 watts. You may find that your lamp fixture has a warning regarding the maximum wattage permitted per socket. Use the 15 watt value, and not the 100 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.

PN 4006.27: 2700K
PN 4006.30: 3000K

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...

View full details


Our CENTRIC HOME™ bulbs are offered in 2700K and 3000K color temperature options. Both options provide a warm and relaxing environment, perfect for home and hospitality applications.

2700K light is very similar to the warm glow emitted by a traditional incandescent light bulb. 3000K, on the other hand, still provides a relaxing and warm environment, but is slightly less yellow, which may be preferred for locations that are more task-oriented, such as reading and dining. Learn more here.

Both color temperature options feature 95 CRI, which ensures that the light spectrum is a near-perfect replication of traditional incandescent and halogen bulbs.

Learn More


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 2700K and 3000K?

These color temperature options correspond to the various shades of natural light. 2700K is a light color that best approximates the warm glow of traditional incandescent bulbs, while 3000K provides a bit more of a crisp and brighter white.

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, both color options feature 95 CRI and flicker-free light output, which will provide you with a healthy and relaxing environment.

Below is an article that go into further detail:

Choosing Between 2700K and 3000K

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 daylight white (4000K - 6500K) 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. 

Some people prefer daylight or neutral white color temperatures as they offer a more balanced spectrum that eliminates the orange and yellow tint seen in warm white color temperature bulbs.

If you're looking for a bulb that produces a crisp, energizing white light, we would recommend our CENTRIC DAYLIGHT™ product line, which offers the same 95 CRI and flicker-free performance but with daylight white color temperatures.

Do these bulbs emit blue light?

As with virtually all light sources, the CENTRIC HOME™ LED bulbs do emit some blue light.

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.

The CENTRIC HOME™ bulbs have a M/P ratio of approximately 0.5, which is inline with traditional incandescent and halogen bulbs.

It is also important to keep in mind that time of day, exposure time and distance away from the bulbs also have a significant influence on whether or not the blue light wavelengths will impact your circadian cycle.

How many bulbs should I install in my space?

We generally recommend using one bulb for every 75 square feet of space. Simply divide the square footage of your space by 75 to get the number of bulbs needed. For example, a 150 square foot area would require 150 divided by 75, or 2 bulbs.

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

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 A21 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 A21 type, these bulbs will be compatible.

Although these lamps have the brightness of 100 watt incandescent lamps, these lamps have an actual power draw of only 15 watts. Therefore, they can safely be used in fixtures that have a max rating of less than 100 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 25 reviews
Plenty bright, flicker free, good color

I put 3 of these in my 2-story open staircase chandelier and they are plenty bright, flicker free, and good color. I had previously tried Philips 75w equivalent LED bulbs (not the better Ultra Definition model, my mistake) and they had poor color, making my skin look pale and lifeless, the Waveform bulbs performed much better. I would love a 75w equivalent with 1100 lumens, as 1600 lumens is more brightness than I need!

Great bulbs

The color is fantastic! No hum or flicker.


I needed a big, bright bulb to use as a utility light in my dark, windowless, unfinished basement. The A21 15W bulb is perfect. The quality of the light it casts is fantastic. So much better than the many LED brands I have tried in the past!

Alexander Kozen

These bulbs are amazing. Great color and don’t flicker. My head feels better.

Geoffrey Pursell
Excellent all around

I bought this to provide a nourishing full-spectrum light for the hanging light above my desk in the living room, and it's fantastic.

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