Model: H1401 Illuminate your space with Govee Smart Bulb E26 A21 1600lm. Immerse yourself in vibrant, multicolored lighting with customizable brightness. Powerful 1600-Lumen Output and CRI > 90: High-lumen for focused tasks plus exceptional color fidelity with a high CRI of over 90. LuminBlend+: Our A21 bulb delivers superior precision and consistency on all brightness levels. Adjustable Color Temperature: Seamlessly adjust your lighting from a warm, relaxing 1000K glow to crisp, energizing 10000K cool white with these dimmable light bulbs (Please update the app firmware to version 1.00.24. ). Millions of Color Choices: Our color-changing light bulbs let you choose from over 16 million colors to create the perfect atmosphere for a lively party, a cozy movie night, and personalized décor. Group Control: Group smart bulbs by room or purpose, and control them all simultaneously with just a single tap. 13W Energy-Saving Bulb: Delivers the same brightness as a traditional 100W bulb while using significantly less energy, helping you save on electricity costs.