Abstract: A fastener is provided for an LED lighting device. The LED lighting device includes a light emission section and a heat dissipation section. The lighting device has opposite ends each provided with the fastener. The fastener has a base that includes a retention section and first and support sections extending upward therefrom. The first and second support sections are arranged at opposite sides of the retention section. The first and second support sections each have a top end forming a flat top surface. The retention section includes a pawl. Two fasteners are coupled to the opposite ends of the LED lighting device so that the LED lighting device can be independently mounted to positioning rails. When the LED lighting device gets broken, it only needs to remove the LED lighting device alone for replacement. In this way, the operation of replacement and maintenance of the LED lighting device is simplified.

Abstract: An LED lamp assembly contains a number of light source modules, a front cover, a back cover, two side covers, a power supply, a transparent top cover, and at least a bottom cover. Each light source module contains a circuit board and a heat dissipation element. The circuit board has a number of LEDs and secondary optical elements. The heat dissipation elements have connection elements so that a number of heat dissipation elements could be slide-joined together side by side, and front and back covers could also slide-joined to the dissipation elements. Each heat dissipation element has a number of fins and each fin has a number of grooves so as to increase the heat dissipation area of the LED lamp assembly.