Reliability prediction of the high-powered LED based on dynamic neural network

In view of the high cost of high-powered LED reliability prediction and evaluation, a new intelligent prediction method based on dynamic neural network is proposed. The junction temperature, ideal factor, color temperature drift, color coordinate shift, color saturation and color rendering index of the high-powered white LED chip are measured as the input, and the life is measured as the output to calculate the precision of the model. The research results show that the model has good extrapolation ability and robustness, and can successfully predict the life of the high power LED in a short time. The error of test group is less than 5%.