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How to deal with the situation where the sensor LED light bead turns off and the light bead is slightly bright

The light bead is slightly on, indicating that there is still a reason for the power outage or current passing through, and it should be a problem with the drive or input power in detail

What is the principle of sensor LED beads

Sensor LED beadsIt applies the thermal infrared radiation generated by humans. The human body sensing element located in the lamp head is used to focus thermal infrared rays on the surface of the sensing element through a circular Fresnel filter, generating an electrical signal. The signal processing module, delay switch module, and light sensing module comprehensively process and analyze whether the human body sensing lamp can be turned on and off under the detection value. There are three built-in modules: infrared sensing module, light sensing module, and delay switch module. The thermal sensing module is responsible for detecting human thermal infrared radiation, the delay switch module is responsible for handling the range of lighting duration, and the light sensing module is responsible for detecting the strength of light.

In daylight or strong light environments, the electrical signal value detected by the light sensing module will control the entire light to a locked state, and even if someone passes within the range of its LED human body sensing light, it will not turn on the light. In low light or at night, the light sensing module will turn on the sensing light in standby mode based on the detected light efficiency value, and at the same time, the human infrared thermal sensing module will also be activated. If the human infrared thermal sensing module detects human activity within its range, it will generate an electrical signal that prompts the delay switch module to turn on the light, and the LED light bead will turn on and light up. The delay switch has a set value of less than 60 seconds. If the person is continuously within the sensing range, the LED human sensing light is always on. When the person separates, the human sensing module does not detect human infrared, so there is no signal to the delay switch. Within about 60 seconds, the LED human sensing light will automatically turn off. At this point, each module is in a standby state, waiting for the next work cycle.

What is the input voltage of the sensor LED bead

The AC input voltage of LED lights is 220V, and the output voltage to LED beads is DC voltage. The magnitude of DC voltage varies depending on the power and circuit structure of the LED lamp