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  • the internal resistance of the photoresistor

    The device application circuit works as shown in Figure 3. It can be used for warehouse, office or other places for the door light. When the permanent magnet ZT and the reed switch AG are in close pro...

  • The device application circuit works as shown in Figure

    The device application circuit works as shown in Figure 3. It can be used for warehouse, office or other places for the door light. When the permanent magnet ZT and the reed switch AG are in close pro...

  • Due to the strong light during the day

    The device application circuit works as shown in Figure 3. It can be used for warehouse, office or other places for the door light. When the permanent magnet ZT and the reed switch AG are in close pro...

  • open the door during the day, H is not lit

    The device application circuit works as shown in Figure 3. It can be used for warehouse, office or other places for the door light. When the permanent magnet ZT and the reed switch AG are in close pro...