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在２×４×２（ｍ３）的模拟小室内，分别用２０、４０、８０、１６０只家蝇受试，灭蝇灯对家蝇的击倒率与时间对数均呈Ｓ型曲线关系，模型１：ｙ＝Ａ＋Ｂｌｎｔ，Ｂｌｎｔ－５）能很好地描述击倒率机值及击倒率与时间的关系，其中直线回归的决定系数均在０．９７以上；模型２能有效地描述击倒率与时间的关系，其中直线回归的决定系数均在０．９５以上。由模型计算的ＫＴ５０、２４ｈ击倒率，可做为评价灭蝇灯灭效的指标。
In 2 × 4 × 2 (m3) simulated cabinets, 20, 40, 80 and 160 housefly were tested respectively. The knockout rate of housefly in housefly showed a S-curve relationship with time logarithm. Model 1: y = A + Blnt, Blnt-5) can well describe the relationship between knockdown rate and knockdown rate and time, of which the linear regression coefficients are all above 0.97. Model 2 can effectively describe the strike The relationship between the turnover rate and time, of which linear regression coefficients are above 0.95. Calculated by the model KT50,24h knockdown rate, can be used as indicators to evaluate the effectiveness of the fly-killing light.