An LED module includes a housing component, a frame holding an LED thereon and covered by the housing component, a fastener located in and secured to the housing component, a heat spreader located in the fastener and secured to the fastener and a heat transfer member having a heat-dissipating unit remote from the LED and a heat pipe thermally connecting with the heat spreader, the LED and the heat-dissipating unit. The housing component tightly presses the frame on the fastener to make a close contact between the heat pipe and the frame. The heat pipe transfers heat from the LED to the heat spreader and the heat-dissipating unit. The heat spreader and the heat-dissipating unit each have a large heat-dissipating surface, whereby the heat generated by the LED can be quickly dissipated by the heat spreader and the heat-dissipating unit.