If it is battery-powered, try to replace the new battery and make sure the positive and negative poles of the battery are installed correctly. If it is a rechargeable lamp, try to charge it for 2-3 hours and test it again to check whether the charging port is loose.

Traditionally, LED lamps are usually controlled by manual switches. The existence of a switch allows users to easily turn on or off the lamp when needed, ensuring the convenience and energy saving of lighting. In this case, the switch is usually installed near the entrance, such as the kitchen door or next to the cabinet, so that users can easily operate it manually.

Advantages of surface mount LED lights: 1. High efficiency and energy saving 2. Long life and low maintenance cost 3. Compact design and flexible installation 4. Green and environmentally friendly with no harmful substances 5. Instant light on and no flicker Disadvantages of surface mount LED lights: 1. Higher price 2. Overheating problem 3. Limited light distribution 4. Not applicable to all locations

The beam angle of LED spotlights is generally between 10 degrees and 60 degrees. The beam angle design within this range can meet various concentrated lighting needs. Narrow beam LED spotlights have very small beam angles, usually between 10 degrees and 20 degrees, and are suitable for concentrated lighting at a long distance.