THIRDREALITY Smart Color Bulb ZL4 | E27 | RGB CCT | 810 lumens | 8.9W

Lighting that thinks along – and strengthens your network

Imagine coming home and your lights automatically switching to a warm, relaxing ambiance. With the THIRDREALITY Smart Color Bulb ZL4 , you get just that—and more. This smart E27 bulb combines vibrant RGB colors with tunable white light and also acts as a Zigbee repeater , making your Zigbee network more stable and extending its range.

Why the ZL4?

Many Dutch homes have thick walls or a large layout, where Zigbee signals sometimes falter. The ZL4 solves this by amplifying the signal from each light fixture, eliminating dead spots in your network while still using your lights. The ZL4 fits perfectly into a Home Assistant environment and works seamlessly with Homey .

Key Benefits

• 🎨 Millions of RGB colors – full color spectrum for every moment and every mood
• 🌡️ Adjustable white: 2700K–6500K – from warm and cozy to bright daylight white
• 💡 810 lumens / 8.9W – equivalent to a 60W incandescent bulb, energy efficient
• 🔆 Dimmable from 1% to 100% – adjustable to the nearest lux
• 📡 Zigbee Repeater built-in – automatically strengthens your Zigbee mesh network
• 🔄 OTA firmware updates – always up to date without manual intervention
• 🔌 Standard E27 fitting – fits in almost any fixture (A60 size)

Compatibility

⚠️ Note: A Zigbee hub is required. The ZL4 does not work standalone via Wi-Fi or Bluetooth.

Technical specifications

Practical example: smart mood lighting on autopilot

Create an automation in Home Assistant where the ZL4 automatically dims to 40% and switches to warm white (2700K) every evening at 7:00 PM when your TV turns on. Everyone's going to bed? A flick of the switch—or a voice command—and all the lights turn off.

FAQ

Do I need a hub?
Yes, the ZL4 works via Zigbee 3.0 and requires a compatible hub such as a Home Assistant Zigbee stick, Homey , or an Amazon Echo with built-in Zigbee.

Does the lamp work as a repeater for other Zigbee devices?
Yes! The ZL4 amplifies the Zigbee signal for all other Zigbee devices in your home, not just lights.

Can I update the lamp?
Yes, via OTA (Over-The-Air) updates the firmware automatically stays up to date via your Zigbee hub.

Does the ZL4 work with Apple Home or Google Home?
Yes, but for this you will need the THIRDREALITY Smart Bridge MZ1 – the ideal companion for those who want to integrate the ZL4 into Apple Home or Google Home.

Is the lamp suitable for dimmer switches?
Yes, the ZL4 will work correctly behind a dimmer, provided it is compatible with LED/Zigbee devices.

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