Abstract: An optoelectronic device includes a first semiconductor layer, a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a first insulating layer on the second semiconductor layer and including a plurality of first openings exposing the first semiconductor layer, wherein the first openings include a first group and a second group; a third electrode on the first insulating layer and including a first extended portion and a second extended portion, wherein the first extended portion and the second extended portion are respectively electrically connected to the first semiconductor layer through the first group of the first openings and the second group of the first openings, and wherein the number of the first group of the first openings is different from the number of the second group of the first openings; and a plurality of fourth electrodes on the second insulating layer and electrically connected to the second semiconductor layer, wherein in a

Abstract: A cleaning device provided with a detergent control structure includes a tube, a connector, a control valve, and a handle. The tube is elongated and has a spray head and a cleaning element at a front end thereof. A rear end of the tube is connected to the handle provided with the control valve. The connector is internally divided into first and second channels and is coupled to a detergent box at a bottom end thereof. The control valve includes a securing block and a rotary block that are respectively provided with two round holes and a round hole. In use, the handle is connected to a water hose to allow input of water. By turning the handle to cause the round hole of the rotary block to align with the first round hole of the securing block and the first channel of the connector, clean water can be ejected from the spray head.