8 Best Cync Smart Bulbs of 2026
Eight Cync smart bulbs compared on connectivity, platform support, and color.
By Ethan Cole
Updated November 10, 2026
Cync (listed as GE CYNC) sells smart bulbs in white, tunable white, and color. This list covers eight Cync bulbs from Amazon listings. Compatibility claims are taken only from each listing.
See our best smart bulbs list and our Smart Lighting hub for the rest.
Note: a smart bulb needs constant power to stay connected, so leave the wall switch on. Check the base and shape against your fixture, stay within the fixture’s maximum wattage, and look at whether it is rated for enclosed fixtures. Many smart bulbs should not run on a dimmer switch, so check the listing. Look for a UL or ETL mark, and follow the maker’s instructions. Listings differ; we describe what each maker lists.
All Products Compared
| Product | Best For | Pack | Base and Shape | Output and Color | Works With |
|---|---|---|---|---|---|
| Cync A19 White Smart Bulb, 2 Pack | No Hub Needed | 2 bulbs | A19 | See listing | Alexa and Google Assistant |
| Cync B11 White Smart Bulb | Candle Shape | 1 bulb | B11 | See listing | Alexa and Google Assistant |
| Cync ST19 Filament Smart Bulb, 2 Pack | Matter Support | 2 bulbs | ST19 | color | Alexa, Google Assistant, and Matter |
| Cync BR30 Color Smart Bulb, 4 Pack | Most Bulbs in the Pack | 4 bulbs | BR30 | color | Alexa, Google Assistant, and Matter |
| Cync A19 Color Smart Bulb, 2 Pack | Color Changing | 2 bulbs | E26 and A19 | color | Alexa |
| Cync A19 Color Smart Bulb, 4 Pack | Dimmable Option | 4 bulbs | A19 | color | Alexa, Google Assistant, and Matter |
| Cync A19 Color Smart Bulb, 2 Pack | Solid All-Rounder | 2 bulbs | A19 | color | Alexa, Google Assistant, and Matter |
| Cync A21 Color Smart Bulb, 2 Pack | High Output | 2 bulbs | A21 | color | Alexa, Google Assistant, and Matter |
| Award | Product | WikiHomeLED Score About WikiHomeLED ScoreThe WikiHomeLED Score is our own rating from 0 to 10, calculated the same way for every product from Amazon buyer ratings, adjusted for how many ratings each product has. It is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | Price | |
|---|---|---|---|---|
GE CYNC A19 Smart LED Light Bulbs, Soft White
|
$31.49 | Buy | ||
GE CYNC Smart LED Light Bulb
|
$26.98 | Buy | ||
Cync GE Smart LED Light Bulb, ST19 Edison Style
|
$44.99 | Buy | ||
Cync GE BR30 LED Smart Light Bulbs
|
$69.99 | Buy | ||
Cync GE A19 LED Smart Light Bulbs
|
$23.99 | Buy | ||
GE CYNC A19 Smart LED Light Bulbs
|
$43.34 | Buy | ||
Cync GE A19 Direct Connect LED Light Bulb
|
$29.99 | Buy | ||
Cync GE Direct Connect A21 Smart LED Light Bulbs
|
$40.99 | Buy |
GE CYNC A19 Smart LED Light Bulbs, Soft White
GE CYNC Smart LED Light Bulb
Cync GE Smart LED Light Bulb, ST19 Edison Style
Cync GE BR30 LED Smart Light Bulbs
Cync GE A19 LED Smart Light Bulbs
GE CYNC A19 Smart LED Light Bulbs
Cync GE A19 Direct Connect LED Light Bulb
Cync GE Direct Connect A21 Smart LED Light Bulbs
Top 3 Cync smart bulbs Reviewed
#1 Cync A19 White Smart Bulb, 2 Pack: No Hub Needed
Why We Picked It
A 2-pack of white smart bulbs. The listing mentions A19 shape and base, a 60W equivalent, Wi-Fi and Bluetooth connection, support for Alexa and Google Assistant, no hub needed, dimming, and a 2.4GHz Wi-Fi network (the listing says 5GHz is not supported).
Key Specifications
- Pack: 2 bulbs (listed)
- Base and Shape: A19
- Output and Color: Not stated in the text we saw
- Connectivity: Wi-Fi and Bluetooth
- Works With: Alexa and Google Assistant
| Pros | Cons |
|---|---|
|
|
Things to Consider
A bulb with no hub is simpler to start with, but each Wi-Fi bulb counts against your network.
Best For
A first smart home setup with no extra hardware.
Skip It If
You use a smart plug or smart switch instead, or the fixture is on a dimmer you cannot change.
Check current pricing and availability for the Cync A19 White Smart Bulb, 2 Pack.
#2 Cync B11 White Smart Bulb: Candle Shape
Why We Picked It
A white smart bulb. The listing mentions B11 shape and base, a 60W equivalent, Wi-Fi connection, support for Alexa and Google Assistant, no hub needed, dimming, and a 2.4GHz Wi-Fi network (the listing says 5GHz is not supported).
Key Specifications
- Pack: 1 bulb (listed)
- Base and Shape: B11
- Output and Color: Not stated in the text we saw
- Connectivity: Wi-Fi
- Works With: Alexa and Google Assistant
| Pros | Cons |
|---|---|
|
|
Things to Consider
Candle bulbs fit small E12 fixtures. Check the fixture rating.
Best For
Small E12 fixtures such as sconces and chandeliers.
Skip It If
You use a smart plug or smart switch instead, or the fixture is on a dimmer you cannot change.
Check current pricing and availability for the Cync B11 White Smart Bulb.
#3 Cync ST19 Filament Smart Bulb, 2 Pack: Matter Support
Why We Picked It
A 2-pack of color smart bulbs. The listing mentions ST19 shape and base, a 60W equivalent, Wi-Fi connection, support for Alexa, Google Assistant, and Matter, no hub needed, and a 2.4GHz Wi-Fi network (the listing says 5GHz is not supported).
Key Specifications
- Pack: 2 bulbs (listed)
- Base and Shape: ST19
- Output and Color: full color
- Connectivity: Wi-Fi
- Works With: Alexa, Google Assistant, and Matter
| Pros | Cons |
|---|---|
|
|
Things to Consider
Matter works through a compatible hub or controller, so check what you already own. The Matter claim is the listing’s own.
Best For
A home built on Matter-compatible hubs.
Skip It If
You use a smart plug or smart switch instead, or the fixture is on a dimmer you cannot change.
Check current pricing and availability for the Cync ST19 Filament Smart Bulb, 2 Pack.
How to Choose Cync smart bulbs
Lineup
Cync lists white, tunable white, and full color bulbs, plus special shapes. Check the model name.
Connectivity
Check the listing for how each bulb connects and whether a hub or bridge is needed.
Platform Support
Check that the listing names your voice assistant or app. Compatibility claims here come only from each listing.
Base and Shape
Match the base and shape to your fixture. Most US lamps use E26.
How We Evaluate Cync smart bulbs
We did not install or run these products. We compared manufacturer specifications and Amazon listing details, selected November 9, 2026. We could not retrieve current Amazon star ratings or rating counts for these listings, so they carry no WikiHomeLED Score, we show no star ratings, and the order is our editorial judgment of the listed specifications, not a score. We looked at base and shape, connectivity, voice assistant and platform support, hub requirements, color range, and dimming. We kept one listing per product family. Compatibility claims are taken only from each listing, and where a listing says a platform is not supported we left it out. Lumen, wattage-equivalent, and white-range figures are as published by each seller and are not our measurements; where a listing is vague or contradicts itself, we say so. Read recent customer reviews before you buy. The full method is on our How We Review page.
Frequently Asked Questions
Do I need the brand’s own app?
Most brands set bulbs up through their own app. Check the listing.
Can I mix bulbs from this brand?
Usually yes within the same app. Check the listing.
Do they work with voice assistants?
Many listings name Alexa, Google, or Apple. Check each one.
Final Verdict
Cync A19 White Smart Bulb, 2 Pack is our first pick, Cync B11 White Smart Bulb follows, and Cync ST19 Filament Smart Bulb, 2 Pack is third. We ordered by the strength of each listing’s stated specifications and platform support, not by ratings. Choose by the platform you use, the base and shape of your fixture, and whether you want color.
New to smart bulbs? Our guides explain how to choose a smart bulb, whether you need a hub, and dimmer switches.
More in Smart Bulbs, LED Light Bulbs, and our Smart Lighting hub.
About the author
Ethan Cole leads research and editing at WikiHomeLED, comparing LED lighting for the home through manufacturer specs, manuals, safety listings and owner feedback. Every product is scored against the criteria on our How We Review page, and picks are updated when models change.