▎ 摘　　要

(CN208154130-U) NOVELTY - The utility model claims an LED lamp bulb, comprising bulb and fixed to at least one heat radiation filament inside the bulb; the bulb is made of transparent shell and electric connector connected to said housing; the heat radiation lamp comprising: a substrate formed on the back surface of the base material of the thermally radiative heat dissipation film, and is fixed at the front of the plurality of LED chips and a phosphor substrate, thermally radiative heat dissipation film is composed of radiating filler at least comprises graphene, dispersing agent and adhesive; The utility model has the heat radiation radiating filament can be formed thermally radiative heat dissipation film of the back surface of the substrate to obtain excellent thermal conductivity and radiating effect, reduce the heat radiation temperature of the filament, and improve the service life of the heat radiation filament. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a LED filament bulb.