Led lamp structure

An LED (light-emitting diode) lamp structure, comprising:

• a heat sink, and a base for connecting to an external power, the heat sink including a first receiving cavity and a second receiving cavity opposite to the first receiving cavity, and a partition between the first receiving cavity and the second receiving cavity;
• wherein an inside wall of the second receiving cavity has two positioning grooves corresponding to first screw holes defined through the partition, the base includes screw pillars each having a second screw hole, a flange surrounded the screw pillars, an outside of the flange corresponding to the screw pillars having position protrusions, the flange fixed to the inside wall of an open end of the second receiving cavity by the positioning protrusions engaging in the positioning grooves, the screw pillars being received into the second receiving cavity, the second screw holes being aligned with the first screw holes, screws extending through the first screw holes and the second screw holes to cause the screw pillars to be fixed at the partition, a light board having light emitting diode modules, and third screw holes corresponding to the first screw holes being arranged in the light board, the light board being located on the partition with the third screw holes aligning with the first and second screw holes, the light board, the partition and screw pillars are fixed together by the screws extending in the third screw holes.