LED LIGHT SOURCE UNIT

摘要

To provide an LED light source unit which is excellent in heat dissipation performance, able to prevent damage to LED and bright, and which has a long life. An LED light source unit comprising a printed board, at least one light emitting diode provided on the printed board, and an adhesive tape for fixing the printed board on the surface of a heat dissipating member, wherein the thermal conductivity of the adhesive tape is from 1 to 4 W/mK, and the withstand voltage between a rear side conductor circuit and a metal housing is at least 1.0 kV.