‎5.07 inches

【Remote Control & Voice Control】: Keep connecting WiFi light bulbs with your home network, you can remotely control alexa light bulbs or check the status of the bulbs via APP on your smartphone when you leave home or travel. Just give a voice command to turn on/off or dim/brighten your smart bulbs. Treatlife smart bulbs work with Echo dot, Google Home Assistant and SmartThings.
【Tunable White & 0%-100% Dimming】: Different from other bulbs, Treatlife dimmable led bulb can smoothly be adjusted from 2500K warm white to 6500K cool white, and the dimming range is 1% to 100%. Just control on the APP, you can adjust the brightness and color temperature to create a relaxing and comfortable atmosphere to suit your mood.
【Easy to Install & Energy Saving】: Just screw the smart light bulbs into any standard E26 light socket. No hub required. Not work with smart switch and dimmer switch. Few steps to connect with phone APP. 2.4G Wi-Fi (NOT 5G). Energy saving smart lights only 9W wattage, equivalent to 60W traditional incandescent bulbs. Saves up to 80% energy, longer bulb life and cut your bills.