Cree Lights Related Max ST19 overview: An affordable filament bulb

The maker of our beloved budget-priced shade A19 good bulb is back again with a slew of new sensible lights, such as this Edison-design ST19 filament bulb. Priced at a sensible $13 (or $75 for a 6-pack), the tunable white Cree Lights Linked Max ST19 boasts easy set up connects specifically to Wi-Fi networks supports Alexa, Google Assistant, and SmartThings and packs an amazing arsenal of automation equipment. But the quirky Cree application can be perplexing to use (why need to you team lights that are previously in a area?), and the ST19’s lowest brightness setting is still a bit brilliant for our flavor.

Cree Lights provides a wide assortment of bulbs in its Related Max line, like a shade A19 bulb which is our latest Editors’ Option for price range-priced intelligent bulbs. Back in May perhaps, Cree unveiled a sequence of new Linked Max goods, including this ST19 filament bulb. Between the other bulbs in Cree’s latest batch are tunable white A19, B11 candelabra, and globe-shaped G25 filament bulbs, which all expense $12.99 each and every. The corporation also unleashed a 6-inch coloration downlight for $19.99. We will have a evaluation of that solution soon.

This evaluation is component of TechHive’s coverage of the very best intelligent lights, exactly where you are going to obtain assessments of the competition’s choices, furthermore a buyer’s guideline to the functions you must take into consideration when buying for this type of item.


The Cree Lighting Linked Max ST19 bulb is a tunable design with a “straight tubular,” Edison-design classic condition. Visible within just the distinct bulb are two pairs of straight filaments, a person hotter and 1 cooler by glowing at different intensities, these filaments incorporate to deliver white colour temperatures ranging from a warm 2,200 Kelvin to a significantly cooler 6,500K (equivalent to daylight on a hazy day). Geared up with an E26 base, the Cree ST19 bulb will screw into a conventional light socket.

cree connected st19 detail Ben Patterson/IDG

The Cree Lights Connected Max ST19 bulb has two pairs of straight filaments that blend to provide distinct white coloration temperatures.

Rated to shine at up to a usual 800 lumens, the Cree ST19 bulb experienced no hassle illuminating my workplace, but I have an unusual grievance about its brightness: namely, that it hardly ever gets all that dim. Even when I dialed the bulb’s brightness to the absolute minimal, the ST19 remained a tad as well shiny, which indicates you should really think two times ahead of making use of it in a bed room as a night time light-weight.

The Cree ST19 bulb comes with both of those Bluetooth and Wi-Fi radios, but its Bluetooth functionality is only for pairing the bulb with the Cree app. To command the ST19 bulb, you’ll require to link it to your Wi-Fi community. Simply because it connects immediately to Wi-Fi, there is no will need for a pricey hub or wireless bridge.


Prior to you begin introducing bulbs to the Cree Lights application, you’ll initially want to sign up an account. Refreshingly, you can indication in employing possibly your Facebook or Apple account (not Google, sad to say), which saves you the stress of producing a password. That said, you can build an account applying your e mail tackle, if you wish.

There are two strategies of pairing a bulb to the Cree application: both by using an “auto scan” manner, which enables you to increase multiple bulbs at the exact time, or manually, which requires connecting your cellular phone to a temporary regional Wi-Fi network produced by the bulb.

cree connected st19 dim Ben Patterson/IDG

The Cree Lights Connected Max ST19’s dimmest placing was nevertheless much too vivid for my taste.

Usually speaking, I discover such “auto scan” modes to be strike or miss—most most likely miss—but in Cree’s case, the application managed to discover the ST19 bulb (along with another Cree bulb I’m screening) within a couple seconds, aided by the bulb’s Bluetooth radio. As soon as the app discovered the bulb, it went via the course of action of adding it to my Wi-Fi network of training course, you will have to have to choose your SSID and enter your network password.

Like most Wi-Fi-enabled intelligent bulbs, the Cree ST19 only supports the 2.4GHz Wi-Fi band, but not 5GHz networks. If you are using a twin-band Wi-Fi router that uses the very same SSID for equally networks, you will require to disable the 5GHz network before pairing the bulb, despite the fact that you can often flip it back again on the moment the pairing process is finished.

Functions and performance

With the ST19 extra to the Cree Lights app, I could then increase it to a area in my dwelling a dozen rooms are already configured (backyard, toilet, bed room, dining space, etc.) or you can build your own. Confusingly, having said that, you will not be equipped to management all the bulbs in a area at the same time without the need of creating a individual group for them to start with. That signifies you could find oneself producing (say) a “Kitchen” group in the “Kitchen” home, which would seem a tad redundant. Nonetheless, Cree’s grouping features does allow you to regulate groups of lights throughout unique rooms.

cree connected st19 app Ben Patterson/IDG

The “Dimmer” tab on the Cree Lights application features a coloration temperature slider, and brightness slider, and seven coloration temperature presets. 

If you tap on a bulb or a mild group, you’ll arrive at an appealing interface with a brightness slider, together with a shade temperature palate and 7 one particular-touch shade temp buttons. You can also tap the “Scene” tab to decide on from six diverse lights scenes: Chill out, Emphasis, Energize, Evening Mild (which, as I noted previously, is not pretty dim), Reading through, and Tv Time. You can regulate the configurations for each and every scene, but oddly, you cannot make new types. A Routine tab lets you generate a a single-time, every day, or weekly plan, and you can established a plan to start out or conclusion at sunrise or sunset. Following you build a sunrise or sunset agenda, on the other hand, the dawn and sunset instances will not change instantly on subsequent times.

Besides common schedules, you can established wake up/go to sleep times that slowly brighten or dim the mild in the mornings and evenings (you can established the ramp up/down time anyplace from 5 minutes all the way up to two several hours), as very well as cause a countdown timer. There is also a “dusk-to-dawn” feature that slowly alterations the brightness and color temperature of the bulb according to the time of working day. Unlike a genuine circadian rhythm method, however, Cree’s dusk-to-dawn element adjusts your lights on a fastened program alternatively than basing it on the seasonal daylight in your certain region.

The Cree app boasts some powerful—if bewildering—automation resources (similar variations of which I have witnessed on apps from other good dwelling companies). Automations can be brought on by an just about absurdly vast variety of ailments, ranging from air temperature and wind pace to humidity to dawn or sunset—so yes, if you at any time preferred your lights to switch on when it starts raining outdoors, now’s your prospect. Automations can also be activated on a schedule, or when the status of a device alterations (for instance, if a single of your lights turns on or off). You can also create “tap-to-run” automations that display up as scenes in the Alexa application, or as Siri shortcuts.

Good property integrations

The Cree ST19 bulb supports each Alexa and Google Assistant, which indicates you can management the bulb employing voice handle or by using the Alexa or Google House applications. You can also include the Cree bulb to Alexa and Google Assistant routines, which includes dawn/sunset schedules (which are tied to the actual dawn or sunset on any presented day, not just the working day when you in the beginning set the timetable). Indeed, if the Cree application is way too bewildering or daunting, you could just handle the ST19 utilizing both the Alexa or Google Household applications next the original pairing method.

Besides Alexa and Google Assistant, Cree not long ago additional SmartThings assistance for its Linked Max bulbs, like the ST19. You can also transform “tap-to-run” automations into Siri shortcuts, but the bulb does not offer genuine HomeKit aid, which signifies you won’t be capable to regulate it working with Siri voice instructions.

Bottom line

The Cree Lighting Related Max ST19 is enticingly affordable for a tunable filament bulb, and whilst the Cree app is considerably quirky, there is very little stopping you from managing it exclusively with both Alexa or Google Assistant voice instructions (or their respective apps). That said, I was dissatisfied that this 800-lumen bulb simply cannot get dimmer than it does, and HomeKit customers will have to seem in other places.

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