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It's a small electronic circuit designed to convert AC mains voltage (typically 220V) into low-voltage DC power, suitable for powering LEDs. Key Components: Transformer: ( The large component with the yellow tape is a transformer. It steps down the high AC voltage to a lower AC voltage.) Rectifier:( This component converts the AC voltage into DC voltage. It's often a bridge rectifier.) Capacitor: ( The large blue capacitor filters the rectified DC voltage to smooth out the ripple. Voltage Regulator: (This circuit, often integrated into the design, regulates the output voltage to a specific value, usually 12V or 24V DC.) Input and Output Terminals: ( These are the connection points for the AC power input and the DC output to the LED.) This LED driver ensures safe and efficient operation of LED devices by providing a stable and regulated DC power supply.