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Home /  Support Center /  Knowledge Base /  A19 Filament Bulbs (40 watt equivalent)

Full Spectrum 4000K Bulbs in 600 Lumens?

I would like to buy a whole bunch of 4000K E26 bulbs for my house, but I've found that the 800 lumens are just too bright for me. Do you offer the bulbs in 600 or 650 lumens? If not, can you direct me to a company that does? 

Though we do offer some A19 E26 products with a 450-lumen output such as the Lux24™ Circadian LED Bulb and Ultra High 95 CRI A19 5W LED Filament Bulb, the rest of our E26 products have an 800-lumen output. That being said, we, unfortunately, do not have any alternative manufacturer products that I could recommend at this time.

However, it might be helpful to know that we offer a 30-day return policy for all orders. If our LED lights are too bright for your home, simply let us know and we will promptly issue a prepaid return label.

2700K LED Bulbs in E26 Base and 120V AC

I need a small pack (max. 6 pieces) found the bulb online but not CLEAR. 

We're happy to confirm that both of the products below are available in 2700K, utilize the E26 base, and are available in 6-Packs. Further, both of these products are compatible with 120V.

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

Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential:

Do you have any bulbs with a color temp under 2400K?

Do you have E12 bulbs or consider releasing any? And do you have any bulbs with a color temp under 2400K? I've got an Ikea lamp with an E12 bulb at 2200K and this is excellent lighting for the night. So I was looking for alternatives from Waveform.

Unfortunately, we do not manufacture any lighting products which utilize the E12 standard design at this time.

Further, I can confirm that the lowest color point available among our products is 2400K, which can be found within the Lux24™ Circadian LED Bulb.

Household Bulbs for House Plants

I'm trying to find a regular household-type bulb that would be great for daily use and house plants. I'd like to use adjustable arm table lamps, or pendants to light single plants or a small display and match temp to all other bulbs in the home. I'll change all if necessary. 

Based on the details provided, there are a few different products that we might recommend depending on the preferred color temperature output.

For starters, we might recommend the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb product. Though these are not dimmable, they offer flicker-free performance and a high CRI. Further, the Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential products could look quite nice on a shelf display among plants.

We have attached a blog post link below from our website regarding color temperature selection, which might be helpful for your planning purposes.

Which LED Light Color Temperature Should I Choose?:

As our A19 bulbs will offer a very similar quality of light output, the right option might be better defined by the purpose of the space. For example, while we might recommend a 4000K option for a home office space, we would alternatively suggest a 3200K for a reading area.

I read the blog but didn't see anything about plants. Maybe I should rephrase my question. Which of your A19 bulbs has the correct spectrum and other properties to grow healthy houseplants? These plants are typical tropical varieties composed of mostly foliage, not flowering. Most prefer bright to medium indirect light. Some small 6" ish pots on a tabletop and some large floor plants. I just want to use a variety of attractive lamps that accept regular bulbs.

Though our High CRI A19 bulbs have not been specifically designed for horticulture as some of our other products have been (such as the PhotonTube™ T5HO LED Grow Light Tube for Horticulture product), I am happy to confirm that they offer an extremely similar full spectrum light output to those of our horticulture-focused products.

Regarding the right color temperature for your installation, you might find benefit in either the 4000K or 6500K options of the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb.

While the 4000K provides an output that simulates late-season light, the 6500K option will offer light that is very similar to natural daylight and simulates the light which occurs in early-season growth periods. For an in-depth analysis of the technical benefits that our full spectrum lighting has on plant growth, we have attached a terrific blog post from our website below.

Blog post link:

Flicker Characteristics of A19 LED Filament Bulb

I am interested in the Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential. I would prefer using one of your flicker-free bulbs but they cannot be dimmed. What are the flicker characteristics of this bulb? 

Our A19 filament bulbs have a measured flicker of approximately 20% at 120 Hz. This is in line with incandescent bulbs. (Our photometric reports are here). Unless you have special circumstances that require an even lower level of flicker, we do not believe that the level of flicker exhibited by this bulb would be problematic for most residential applications.

​We completely understand the need for simultaneously achieving dimmability and flicker-free output, and do hope we are able to address this market need in the near future!

Could you suggest any circuit modifications of resistive ballast to prevent flickering from dimming?

I have 6 lights (5W dimmable 2700k A19) on a Lutron CL LED-approved dimmer. I have added 10W of resistive load in parallel to try and prevent flickering from dimming but the lights still have an inconsistent brightness level as they dim up and down. I was wondering if you could suggest any modifications to the circuit to improve the stability. I have also tried it with and without a capacitive load added as well of about 130uF. 

Unfortunately due to variations in dimmer products and configurations, our ability to provide a specific solution in terms of connecting resistive loads here may be quite limited.

Do you have a dimmable A19 LED Bulb?

I don't see any Dimmable LED bulbs on here. Is that on purpose? I'd really like another good option for good dimmable bulbs. CREE bulbs handle dimming very well, but the color is honestly not very good for their standard A19 60w 2700k bulb (even if it says it is CRI 90+). I really loved Hyper ikon's 93 CRI* 3000K bulbs but they supposedly only like ELV dimmers, not PWM. You guys sell a dimmable filament-type bulb which I have not seen before so I'd like to try that in my clear pendant lights instead of the current incandescents. And if those work well, I'd like normal bulbs from you guys but all my lights are on dimmers.

​You are correct that the only dimmable A19 bulb we currently offer is our filament-style lamp. We'll be sure to share your feedback with our product team and do hope we may be able to offer dimmability in our other A19 products in the near future.

Do keep in mind that we offer a 30-day free returns policy, so should you have any concerns or issues with the filament-style A19 lamps, we'll gladly pay for return shipping and provide a full refund.

Recommended LED bulbs for Sputnik Chandelier Fixture

I have a sputnik chandelier that has 18 lights. The edison bulbs pulled too much energy and overheated the dimmer. I switched to LED but the lumens are so high it's BLINDING even on the lowest setting. These look like a great replacement bulb. What do you think?

Based on the description provided, we believe that the Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential product could be a terrific fit for your sputnik lighting fixture.

However, please know we offer a 30 day return policy. In the event that these bulbs wind up not working well with your installation, simply let us know and we will promptly issue a return label.

LED Light Bulbs Rated for Enclosed Light Fixtures

I am wondering if you sell any light bulbs that are rated for an enclosed light fixture. 

We're happy to confirm that our Ultra High 95 CRI A19 5W LED Filament Bulbs and our Lux24™ Circadian LED Bulb - 2400K 95 CRI E26 A19 LED Filament Bulb products are compatible with enclosed light fixtures.

Are there any known health hazards using red phosphors in the bulbs?

I am outfitting my home with waveform-led bulbs. I was wondering if your bulbs give off UV rays to the occupants. Are there any known health hazards with using red phosphors in the bulbs? I am buying PN 4011.40, PN 4002.30 PN 4011.30 I am hoping that all your lights have reduced blue spectrum and are safer than the typical LEDs at hardware stores. I know that your lights carry the CE rating but are not UL listing. 

Our bulbs do not emit any UV rays, and all emitted electromagnetic waves are longer than 430 nanometers.​There are no known health hazards with red phosphor wavelengths as their peak wavelengths are at 630 nanometers or longer.

These photometric properties apply to all of the PN 4011 and 4002 product lines. For reduced blue light output, we would generally recommend high CRI and low color temperature lamps as they will generally offer the best mix of wavelengths to reduce blue light exposure.

Do you have any A19 E26 bulbs suitable for enclosed ceiling light fixtures?

I was wondering if you have any lightbulbs suitable for enclosed ceiling light fixtures for home use -A19 E26. 

I am happy to confirm that we offer A19 filament bulb products, which are able to be used within enclosed lighting fixtures. I have attached links to the products below, for your convenience.

Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential:

Lux24™ Circadian LED Bulb - 2400K 95 CRI E26 A19 LED Filament Bulb:

Ultra High 95 CRI A19 5W LED vs CENTRIC HOME A19 10W LED Bulb

I need a single bulb that's around 400 lumens and 2700K, so I was looking at your Ultra High 95 CRI A19 5W LED. However, the description does NOT mention that it is flicker-free nor does it mention that it's full-spectrum (while your CENTRIC HOME A19 10W LED Bulb does mention these traits). Is the 5W a lower-quality product? Or is it just fewer lumens?

I can confirm that the 2700K Ultra High 95 CRI A19 5W LED Filament Bulb features the same high CRI of 95+ as the CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulb. As such, both products are considered to be full-spectrum.

However, the Ultra High 95 CRI A19 bulb does not offer the same flicker-free performance as the CENTRIC HOME™ bulbs. The flicker-rate of the Ultra High 95 CRI A19 bulb is similar to that of traditional incandescent bulbs.

The benefits offered by the Ultra High 95 CRI A19 bulbs can be found in the warmer color temperatures available, as well as the compatibility with dimmers. In contrast, the CENTRIC HOME™ is not dimmable.

Are BR30 Bulbs Compatible with a Legrand Tru-Universal Dimmer?

I have a new job that's interested in your products. I remember the last time, I returned some products because they weren't dimming correctly. Can you confirm that the BR30s are compatible with a Legrand Tru-Universal dimmer and that they don't buzz audibly when dimmed?

We, unfortunately, do not have any test data on that particular dimmer model this time.

In the meantime, if you're in a rush to decide on the installation, we would recommend purchasing a sample set of bulbs to test and see if they work well and provide the lighting performance you are looking for. If it doesn't work out, we'd be glad to pay for return shipping and provide a full refund.

I thought the A19s used to be dimmable. Did that change?

The A19 filament bulbs are dimmable, but the 10-watt A19 bulbs are not. Please see below for the dimmable A19 filament bulbs:

Do you have a Flicker-free Dimmable Bulb Compatible with an Enclosed Fixture?

I live in an apartment with enclosed fixtures and am trying to find High CRI dimmable flicker-free bulbs that will last a semi-reasonable time in an enclosed fixture.

Unfortunately, our dimmable LED bulbs are not compatible with enclosed lighting fixtures due to the requirements for heat dissipation and airflow.

However, if the lighting fixtures are not fully-enclosed, we would be happy to recommend our Full Spectrum E26 BR30 LED Bulbs. These products feature a high CRI and are dimmable. That being said, this product is not flicker-free.

What about the filament bulbs? I know it's not flicker-free (I have some of the BR30s from my old apartment already, but these are def fully enclosed)

Yes. We can confirm that A19 filament bulbs are suitable for use in enclosed fixtures and damp locations.

Reason for enclosed fixture ratings

What is the reason your A19 bulbs can not be used in enclosed fixtures? Why am I able to use a 60W incandescent bulb, but not your bulbs which are only rated at 10W?

Our 10W A19 lamps may not be used in an enclosed fixture. The reason is that enclosed fixtures do not provide sufficient free airflow to keep the bulbs cool, and may lead to premature failure.

Although LED bulbs emit less heat than incandescent bulbs, they are much more sensitive to heat due to the internal electronics in the LED bulb. An incandescent bulb is essentially made just of glass and a wire element coil (filament). Therefore, although a 60W incandescent bulb may work fine in an enclosed fixture and emit lots of heat, a 10W LED bulb emitting only a fraction of the heat may still be detrimental to the LED bulb because its components are much more sensitive to heat.

A19 bulbs in semi-enclosed fixtures

The product page for the CENTRIC HOME™ A19 bulbs says they are not suitable for enclosed fixtures. Would they be OK to use in semi-enclosed fixtures? For example, I have some floor lamps with cone-shaped lampshades that surround the bulb. How about desk lamps with similar cone-shaped lampshades?

The 10 watt A19 lamps are not, as you correctly mention, not suitable for use in enclosed fixtures. Our definition of enclosed fixtures is defined as any fixture that completely seals off air flow from the ambient environment. The most commonly seen enclosed fixtures are those in residential ceiling fixtures, where a glass housing completely encloses the fixture base.

On the other hand, table and desk lamps that are partially enclosed will not present any issues with the enclosed fixture rating. Because these fixtures allow for sufficient free air flow, there are no concerns with respect to thermal damage and premature failure.

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