sensors are active sensors that emit high-frequency electromagnetic waves (5.8 GHz) and receive their echoes. The sensor can detect changes in the , and even small movements within detection range.The microprocessor triggers the "" . Signals passing through doors, glass panels, and thin walls may be detected. Note: Detection of people or objects moving towards the lamp is more !The high-frequency output of the sensor is less than 10mW, which only accounts for one percent of the mobile power of mobile phones and ovens.The product is a moving object sensor with a detection range of and an operating frequency of 5.8 GHz.The advantage of this product is stable working conditions (stable working temperature: 0 Celsius- + 70 Celsius)This product uses a sensor (high-frequency output less than 0.2lMw), so it is and performs an infrared sensor.It can be installed in products made of glass or plastic, as these materials have little effect on the sensor.Specification:Working voltage: AC220 240V 50 / 60HzCharging power: 400W (inductive load) / 800W (resistive load)Installation : Indoor, wall or ceiling installationHF system: 5.8 GHz +/- 75 MHz CW radio Band Detection angle: Detection distance: 1-8m (Radius), adjustableOperation delay: 8 seconds to 12 minutes, adjustableLight control illumination: 2 ~ 2000LUXPower consumption: 0.9 WOperating temperature: -10 Celsius ~ 70 CelsiusColour: whiteMaterial: ABS+ metalSize: 87*43*39mmPackage Contents:1 * Sensor Switch1 * Screw Accessories Package1 * Instruction ManualNotes:Note: Detecting people or objects moving toward the lamp is more .The high-frequency output of this sensor is less than 10mW, which is only one percent of the mobile power of mobile phones and ovens.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.