Light engine heat radiation parameter test device and test method

The invention discloses a light engine heat radiation parameter test device and test method; the light engine heat radiation parameter test device comprises a sealed semispherical cavity, a radiator arranged in the center of the cavity, temperature sensors uniformly arranged on an inner wall of the cavity, two power meters respectively connected with a temperature heater and a to be tested light engine, and a voltage meter connected with a heat flow meter; the heat flow meter and the temperature heater are arranged on an outer side face of the radiator. A real work condition of the light engine is simulated and influences against environment temperature by convection and radiation are fully considered, so the light engine radiation parameters can be accurately measured and calculated, and influence against heat distribution by the sealed space is mastered, thus providing evidences for a designer and developer to analyze product heat radiation characteristics, and satisfying comparison test demands of different light engine heat radiation parameters under same power.