The Xiaomi Mijia Night Light 4 has debuted in crowdfunding on the Xiaomi Youpin platform, offering a radar-based motion sensor operating in the 24 GHz band according to reporting by outlets such as IThome, MyDrivers, and XimiTime. Designed to eliminate false triggers caused by room temperature or clothing materials, the new night light detects movement up to three meters directly in front and two and a half meters to the sides within a 120-degree angle.
How the 24 GHz Radar Sensor Operates
Unlike previous models relying on standard infrared sensors, the Xiaomi Mijia Night Light 4 utilizes a 24 GHz radar sensor to track surroundings. According to the source coverage, the radar captures even minute movements to prevent the light from turning off prematurely while someone sits quietly. This sensor is paired with an ambient light detector, ensuring the lamp activates exclusively after dark and remains off during daylight hours. The device automatically shuts off ten seconds after a user leaves its detection range, with the manufacturer promising higher stability compared to traditional infrared alternatives.
Lighting Specifications and Battery Life
The lamp projects light from its back surface to reflect off walls, creating a diffused glow that avoids direct glare in the eyes. Users can manually switch between four brightness levels yielding 1, 3, 5, and 15 lumens. According to Xiaomi’s specifications cited by reporting outlets, the unit features seventeen LED diodes emitting a warm 2800 K color temperature without visible flickering or harmful blue light, meeting the RG0 safety classification. An 800 mAh battery powers the device and recharges via USB-C. The manufacturer states that the lowest brightness setting yields up to eight months of battery life on a single charge, while continuous maximum brightness reduces operation to roughly three months.
Crowdfunding Pricing and Availability
The Xiaomi Mijia Night Light 4 operates entirely standalone without Bluetooth connectivity or integration with the Xiaomi Home application, relying instead on two hidden buttons for mode selection and brightness adjustments. Mounting options include an adhesive tape strip or a magnetic bracket for placement on walls, under cabinets, in bedrooms, hallways, or bathrooms. During the crowdfunding campaign on Xiaomi Youpin, which runs until September 16, a single unit costs 59 yuan (approximately 185 CZK) and a twin-pack sells for 115 yuan (around 360 CZK). Official distribution has not yet expanded to the Czech Republic, though prior generations reached the domestic market.
Frequently Asked Questions
How does the radar sensor differ from older models?
According to the source reporting, the new model replaces standard infrared detection with a 24 GHz radar sensor that covers a 120-degree angle, tracking movement up to three meters ahead and two and a half meters to the sides without interference from room temperature or clothing materials.
Can the Xiaomi Mijia Night Light 4 connect to a smart home app?
No, the device functions entirely independently without Bluetooth or Xiaomi Home app support, and is controlled manually via two hidden buttons.
What is the battery life of the device?
According to Xiaomi’s published figures, the built-in 800 mAh battery lasts up to eight months on the lowest brightness setting and about three months on continuous maximum brightness.
Pro Tip: When placing motion-activated lighting in hallways or bathrooms, mount the magnetic bracket at a lower height to capture foot traffic effectively while keeping the indirect, warm glow out of direct line of sight.
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