Main Features: Zero line and fire wire single key version Single key control Multiple application: can connect to Aqara smart devices or other ZigBee devices Use conditions: has to work with zero line Wireless connection: ZigBee Wireless frequency: 2.4GHz ( 2400 - 2483.5MHz ) Power input: 10A max. 250V AC Load output: 2500W max. total loading Working temperature: 0 - 40 Deg.C Working humidity: 5 - 95pct Please download the "Mi Home" APP in Google Play or Apple Store Brand: Xiaomi Model: Aqara Fire Wire and Zero Line Single Key Version Material: Plastic Color: Milk White Package weight: 0.191 kg Product size (L x W x H): 8.50 x 8.50 x 4.20 cm / 3.35 x 3.35 x 1.65 inches Package size (L x W x H): 8.60 x 8.60 x 4.50 cm / 3.39 x 3.39 x 1.77 inches Package Contents: 1 x Xiaomi Aqara Smart Light Control Fire Wire and Zero Line Single Key Version

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