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Transform your bedroom or living room into a cozy retreat with the Philips Hue Smart LED A21 Bulb. Emitting a warm white light at 2700K, it creates an inviting atmosphere perfect for relaxing after a long day or unwinding before sleep. Unlike basic bulbs, this smart bulb lets you dim smoothly from full brightness down to 5%, so you can set the ideal mood for movie nights or winding down without harsh glare.
Control is effortless: use the Hue app on your phone to adjust brightness from anywhere, or pair it with a Bridge to use voice commands with Alexa, Google Assistant, or Apple Home. No complex setup—just screw in the bulb, download the app, and start enjoying smart lighting in minutes. With a lifespan of 25,000 hours, you won't be replacing this bulb anytime soon. One bulb included.
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| Brand | Philips | Philips | Geeni | Franqual | VOCOlinc | OREiN |
| Model | A21 | A19 | Prisma Plus | L4 | ||
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| Price | $23.99 | $29.99 | $10.79 | $19.99 | $45.99 | $21.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | May 29, 2026 | May 29, 2026 | May 24, 2026 | May 27, 2026 | May 19, 2026 | May 29, 2026 |
| Wattage | 13.5W | 9W | 9W | 9.5 watts | 9W | |
| Dimmable | Yes, down to 5% | Yes | Yes | Yes | ||
| Lifespan | 25000 hours | 25000 hours | 25,000 hours | |||
| Base Type | E26 | E26 | E26 | E26 | ||
| Bulb Shape | A21 | A19 | A21 | A21 | A21 | |
| Hub Required | No (bridge optional) | No (optional Hue Bridge for full features) | No | |||
| Color Temperature | 2700K | 2700K | 2700K-6500K | 2200K-7000K | ||
| Brightness | 800 lumens | 1600 lumens | 1600 lumens | |||
| Dimensions | 4.3 in x 2.4 in | 2.6 inches in diameter, 5.1 inches in height | A21 size | |||
| Connectivity | Wi-Fi | Bluetooth, 2.4 GHz Wi-Fi | WiFi 2.4 GHz | |||
| Wattage Equivalent | 60W | 150W | 100W | |||
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