Abstract: A light device includes a controller, a light-guiding tube, two holders, and two cables. Each of the two holders defines therein a receiving space, in which an LED unit is provided to serve as a light source. The two holders are detachably mounted over two ends of the light-guiding tube, respectively, such that the LED unit located in each holder faces one end of the light-guiding tube, so that light rays emitting from each LED unit may enter the light-guiding tube. Each of the two cables is provided between one of the two holders and the controller for detachably connecting the LED unit located in the holder with the controller. When an LED unit fails, the corresponding holder with the failed LED unit therein can be removed from the light-guiding tube and the associated cable to be replaced with a new one, thus facilitating repair and saving the cost.

Abstract: A tonneau cover generally includes two rails and at least two plates. The two rails are adapted to be fixedly mounted at two lateral sides of a cargo bed of a truck. A first plate is fixed to the two rails. A second plate is pivotally connected to the first plate and other plates are pivotally connected one after another in the same manner. In operation, all the plates except the first plate can be operated to move along the two rails to allow the plates to overlap each other to uncover the cargo bed of the truck, or to allow the plates to be flush with each other to cover the cargo bed of the truck. The tonneau cover occupies less space and can be operated easily and conveniently.