An LED structure, comprising: a metallic frame having a first conductive frame, a second conductive frame and a plurality of extending arms, the first conductive frame and the second conductive frame being spaced apart from each other, the plurality of extending arms respectively and integrally extended from the first conductive frame and the second conductive frame, each of the first conductive frame and the second conductive frame having a top surface, a bottom surface, and a lateral surface, the lateral surface connecting the top surface and the bottom surface; an insulating body partially sealing the top surface of the first conductive frame and the top surface of the second conductive frame to form with a sealed region and a mounting region, the insulating body partially sealing the bottom surface of the first conductive frame and the bottom surface of the second conductive frame to form with a wrapped region and a welding region, the insulating body sealing the extending arm of the first conductive frame and the extending arm of the second conductive frame and exposing at least one end surface of the extending arm of the first conductive frame and at least one end surface of the extending arm of the second conductive frame; and at least one LED die mounted on the mounting region and electrically connected to the first conductive frame and the second conductive frame; wherein at least one slot located in the sealed region is concavely formed on the top surface of one of the first conductive frame and the second conductive frame, two openings (1113a, 1113b) are formed on the lateral surface of one of the first conductive frame and the second conductive frame, and the slot is communicated with the two openings (1113a, 1113b) so as to separate at least one of the extending arms from the mounting region; characterized in that the first conductive frame and the second conductive frame each having a predetermined thickness and a depth of the at least one slot is approximately a quarter of the predetermined thickness to three-quarters of the predetermined thickness. a metallic frame having a first conductive frame, a second conductive frame and a plurality of extending arms, the first conductive frame and the second conductive frame being spaced apart from each other, the plurality of extending arms respectively and integrally extended from the first conductive frame and the second conductive frame, each of the first conductive frame and the second conductive frame having a top surface, a bottom surface, and a lateral surface, the lateral surface connecting the top surface and the bottom surface; an insulating body partially sealing the top surface of the first conductive frame and the top surface of the second conductive frame to form with a sealed region and a mounting region, the insulating body partially sealing the bottom surface of the first conductive frame and the bottom surface of the second conductive frame to form with a wrapped region and a welding region, the insulating body sealing the extending arm of the first conductive frame and the extending arm of the second conductive frame and exposing at least one end surface of the extending arm of the first conductive frame and at least one end surface of the extending arm of the second conductive frame; and at least one LED die mounted on the mounting region and electrically connected to the first conductive frame and the second conductive frame; wherein at least one slot located in the sealed region is concavely formed on the top surface of one of the first conductive frame and the second conductive frame, two openings (1113a, 1113b) are formed on the lateral surface of one of the first conductive frame and the second conductive frame, and the slot is communicated with the two openings (1113a, 1113b) so as to separate at least one of the extending arms from the mounting region; characterized in that the first conductive frame and the second conductive frame each having a predetermined thickness and a depth of the at least one slot is approximately a quarter of the predetermined thickness to three-quarters of the predetermined thickness.