A load control device for controlling a load unit includes a transistor circuit, a charge/charge-discharge circuit, a first hand-assembly electrode and a second hand-assembly electrode. The transistor circuit includes a transistor, and a first electrode of the transistor is electrically connected to one end of the load unit. The charge/charge-discharge circuit is electrically connected to a control electrode and a second electrode of the transistor. The first hand-assembly electrode is electrically connected to the control electrode of the transistor. The second hand-assembly electrode is electrically connected to the charge/charge-discharge circuit and the second electrode of the transistor. A hand-assembly circuit board including the load control device and a hand-assembly circuit is also provided.