How to choose 1.2m infrared induction led tube 18w
1. Working principle (T8-1.2m infrared induction led tube 18w as an example):
First understand how infrared sensing is achieved?
It is mainly composed of two parts, the first part: the protruding plastic part that can be seen from the outside, and the material is an acrylic Fresnel lens. It mainly has the following two functions: 1. Focusing, reflecting the pyro-infrared signal on the PIR; 2. It is the movement of the detection area to produce a change in the PIR in the form of temperature changes. The pyro-infrared signal is received. The infrared signal is input in the form of pulses, thereby changing its energy amplitude. The infrared rays are effectively concentrated on the sensor. The second part is the pyrosensor. The signal is collected by a small glass window. Therefore, the size of the window determines its sensitivity. Inexpensive sensor head with small window. The sensitivity is low. So the sensing distance is short. The sensing distance of the infrared induction led lamp tube of Langte company is far, generally can reach 5-8 meters. Customers must pay attention when choosing the sensing distance.
2. Working principle of 1.2m infrared induction led tube 18w
1>Using infrared sensors to control the infrared LED fluorescent tubes in the parking lot. When there is no vehicle entering or leaving, the infrared LED fluorescent tubes are in a dormant state, and the power consumption is 2-3W, which not only meets the security monitoring lighting, but also saves electricity.
2>When a vehicle enters or exits, the LED infrared sensor tube is awakened with a power of 12W, which is convenient for the owner to stop. When the car or person leaves the sensor area for 40 seconds, the LED light automatically re-enters the dormant state with a power of 2-3W.
3. How to choose infrared induction led tube 18w?
1. The choice of sensitivity, good quality infrared induction led tube, high sensitivity, stable and reliable quality. When performing sample test, do not put it on the desktop to test. Some customers walked directly to the lamp and found that the lamp only started to work when it was very close. This is not correct. Hang up the lamp as much as possible, the height is generally about 3 meters. Then slowly move to the led induction lamp tube, this time the sensing distance is relatively far. Why is this? According to the principle mentioned above, the difference is that when the LED tube is placed horizontally, the infrared rays of the human body are not sensed by the Fresnel lens. When it is hung up, the lens receives a larger signal due to the infrared cutting movement of the lens. , Of course it is sensitive.
2. Infrared induction led lamp light parameter selection, LED lamp for garage, choose 6000k color temperature, 70-80 CRI is fine. It is enough to choose the power of 12-13w, and even a transparent lampshade can be used, which can increase the brightness by about 15%, and the energy-saving effect is better.
