The invention street lights, security and the like, or relates to a LED module system to be applied to lighting devices and luminaires, and more particularly, to efficiently discharge also, as well as, a water-proof and heat maximize waterproof heat generated inside the It relates to a LED module device with a function, In particular, LED unit of the present invention including a printed circuit board which is mounted a plurality of LED chips and; Jidoe is a plurality of radiating fins myriad forms as the bottom, becomes is formed so that its height toward the edge gradually decreases from its center, the upper portion of additional substrate mounting groove is formed having a predetermined depth, which may be the LED unit mounting, the substrate provided along the groove portion of the inner edge of the sealing groove having a predetermined depth are formed at predetermined intervals in the sealing groove thread groove is the other hand, the lead-through holes in the inner side of the substrate installation depressed portion is formed is formed jidoe, the lead-through hole is stepped jaw portion is formed is formed to have a lower inner diameter smaller than the upper portion while being in communication with one side of the lead-through hole as soon embedded unit has been drawn out, the drop line connection in the LED unit at the same time drawn to lead-in wire passes through the through-hole groove and the frame body is formed; As the threaded mounting holes in the substrate portion of the frame body LED unit LED chips and corresponding stand diffusion lens is extended transparent material for the LED lens cover been formed at regular intervals with the; As installed in the closed groove of the frame body and the upper surface thereof, the upper jaw and the corresponding bottom edge of the cover for the LED lens, and a lower surface, the waterproof ring body having a lower projection corresponding to the sealing groove of the frame body; Is one wherein the including; lead-resistant member of the rubber material can be inserted as sealing lead-in is installed in the through hole is sealed so as to be provided through the lead-receiving holes in the central portion of the frame body.;
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