The present invention provides a structural improvement of a light-thermal separation type light box, which is characterized in that the air inlet of the filter body of the box enters the cooling airflow and is discharged by the air outlet, and the convection effect is generated to cause the light-emitting device to emit light. The heat is taken away from the box to achieve the purpose of reducing the power consumption of the air conditioner required for cooling the indoor space.本創作係提供一種光熱分離式燈箱之結構改良，特色在於主要是由箱體之具濾網之進氣孔進入冷卻氣流並由出氣孔排出，藉由所產生之對流效果將發光裝置發光所造成之熱量带離箱體，以達到降低室內空間降溫所需空調耗電量之目的。
