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Linkind Smart Light Bulb UltraColor A21 Color+White 1600lm
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Linkind Smart Light Bulb UltraColor A21 Color+White 1600lm

Sale price  $27.99 Regular price  $49.99

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key features
  • 【2.4G & 5G Compatible – Dual-Band WiFi 6 kills lag】When your home network gets crowded with 50+ devices, regular bulbs delay and disconnect. Our industry-first dual-band 2.4GHz & 5GHz WiFi 6 delivers higher bandwidth, faster response, and stronger anti-interference. Your lighting stays instantly responsive during intense gaming sessions and live streaming – no lag, no frustration
  • 【1000-20000K Wide Color Temp – For Every Moment】 1000K candlelight for dinners & decor. 2700K warm white for living room or study. 3500-4000K neutral for kitchen & makeup. 5000-6500K cool daylight for reading & projects. 10000-20000K vivid blue-white for gaming & parties. All in one bulb
  • 【ULTRACOLOR – Brighter and more vivid】Stop settling for dull, washed-out colors. UltraColor technology produces richer reds, deeper blues, and more vibrant greens. At 1600 lumens of true-to-life brightness, this A21 bulb transforms your space whether you are gaming, entertaining, or just relaxing at home
  • 【MATTER CERTIFIED + LUMISYNC COMPATIBLE – Future-proof smart ecosystem】Connect directly to your existing dual-band router Matter certification ensures seamless, secure, and reliable integration with Alexa, Google Home, and major smart platforms. Sync with LumiSync TV light strips for room-wide motion effects that follow what is on your screen
  • 【AI-POWERED CUSTOMIZATION – Just tell Dotis your idea】Say “cozy fireplace” or “cyberpunk gaming vibe” – Dotis turns your words into stunning custom lighting effects instantly. No complex app navigation. With 66+ preset scenes, music sync, and light show modes, you can also set schedules, group control multiple bulbs, and use voice commands with Alexa and Google Home
  • 【TIPS】This bulb is designed for 120 Volts systems. It is not compatible with wall dimmer switches (may cause flickering or buzzing)—adjust brightness via the AiDot/Matter app or voice control, and use a standard on/off switch. A hub is required for Matter connectivity. Not Compatible with Tuya & Smart Life. Thread Not Supported. LumiSync compatible with Linkind light strips only.
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Specification

Light Type LED
Bulb Shape Size A21
Incandescent Equivalent Wattage 100 watts
Light Color 16 Million Color+Tunable White
Voltage 120 volts
Control Method Voice
White Brightness 1600 lumens
Wattage 14 watts

FAQs

How is the UltraColor A21 1600lm different from the A19 1100lm version?

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The A21 delivers 1600 lumens versus 1100 lumens from the UltraColor A19—about 45% more light output. It’s a better fit for larger rooms or spaces that need brighter everyday lighting, while keeping the same UltraColor, Matter, dual-band Wi-Fi 6, Dotis, and LumiSync features.

Does the UltraColor A21 work with both 2.4GHz and 5GHz Wi-Fi?

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Yes. It supports both 2.4GHz and 5GHz Wi-Fi 6 for more flexible setup and connectivity. It uses Matter over Wi-Fi; Thread is not supported.

What is the 1000K–20000K color temperature range useful for?

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Use 1000K–2700K for candle-like or cozy evening light, 3500K–4000K for everyday tasks, 5000K–6500K for reading and projects, and the higher blue-white range for gaming, parties, or dramatic lighting effects.

Does the UltraColor A21 work with Alexa, Apple Home, Google Home, and SmartThings? Do I need a hub?

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Yes. Matter allows it to work with major smart home platforms including Alexa, Apple Home, Google Home, and SmartThings. A compatible Matter controller or hub is required for Matter integration; AiDot is used for the bulb’s advanced lighting features.

What can I do with Dotis, LumiSync, scenes, and music sync?

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Dotis can generate custom lighting effects from prompts like “cozy fireplace” or “cyberpunk gaming.” You can also use 66+ preset scenes, music sync, schedules, group control, and LumiSync with compatible Linkind TV light strips.

Can I use the UltraColor A21 in any lamp or with a wall dimmer?

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Use it only in a fixture with enough clearance for an A21 bulb and a compatible 120V power system. Do not use it with a traditional wall dimmer; adjust brightness through AiDot, your Matter platform, or voice control instead.