10 Best Dimmable Smart Bulbs 2025 in the United States

The Amazon Basics Smart A19 LED Light Bulb offers a solid choice if you want easy smart lighting controlled mainly via Alexa. It provides 800 lumens of brightness, which is enough to replace a traditional 60-watt bulb, and emits a warm, soft white light at 2700 Kelvin—comfortable for most indoor spaces. You can smoothly dim the light from 5% to 100%, which helps set the mood or adjust lighting throughout the day. The bulb connects directly to your 2.4 GHz Wi-Fi network without needing a hub, making setup straightforward through the Alexa app. However, it only works with Alexa and is not compatible with other popular systems like Google Assistant or Apple HomeKit, which limits flexibility if you use different smart home setups.

Energy-wise, it uses just 7.5 watts, making it efficient and cost-effective over time. Additional features include the ability to control lights remotely and create group commands for multiple bulbs, adding convenience and security by simulating occupancy when you’re away. The bulb fits standard fixtures (E26 base) and can be used in various rooms, including bathrooms.

The exclusivity to Alexa and reliance on 2.4 GHz Wi-Fi means it may not suit everyone, especially if you prefer other smart assistants or dual-band connectivity. Also, it doesn't support color changes beyond soft white, so it’s best if you want simple, dimmable white lighting. This bulb is a good fit for Alexa users looking for an affordable, easy-to-use smart bulb with reliable brightness and dimming but less suited for those wanting broader smart home compatibility or color options.

The Kasa Smart Bulb KL135P2 offers a bright 1000 lumens output, which is suitable for general room lighting. It features a broad color temperature range from 2500K to 9000K, allowing you to switch between warm and cool whites or choose from 16 million colors. This flexibility makes it great for various moods and occasions, from cozy evenings to vibrant parties.

It connects via 2.4GHz Wi-Fi without needing a separate hub, simplifying setup and control. Compatibility with both Amazon Alexa and Google Home adds convenience through voice commands. The bulb is dimmable, providing adjustable brightness to suit different settings. An energy monitoring feature helps track and reduce electricity use, while scheduling lets you automate lighting based on your daily routine. The bulb is energy efficient, using just 10.5 watts to replace a traditional 60W bulb, which can save on power bills.

The bulb supports only 2.4GHz Wi-Fi networks, so it will not connect to dual-band or 5GHz networks. Full functionality requires use of the Kasa app, which offers comprehensive control options. This smart bulb is ideal for users seeking versatile lighting options with good brightness, app and voice control, and energy tracking without complicated setup.