LED Lighting-PAR30 E27+Fresnel Lens

 Thermal impedance is defined as a substance in a watt of heat that can be sustained under the temperature difference on both sides. 60 micro-watts to power, heat resistance 250 ℃ per watt LED packaging material, for example, the grain interface, the temperature may be estimated as 250 ℃ / W × 0.060 W + at room temperature (25 ℃) = 40 ℃. If the power increase of 0.5 watts, the grain interface, the temperature will reach 150 degrees Celsius, light-emitting diode component will be severely damaged.