Dual fuel burners gas/light oil with electronic control box. With the addition of optional accessories (PID electronic regulator and probe) thanks to the most advanced systems for automatic modulation in mechanical or electronic version, the burner constantly ensures the proper thermal load. The maximum efficiency of the returns in each combustion point derived from the punctual adaptation of the thermal load to the heat requirements of the burner at any instant of operation. In the version with the electronic cam the fuel / combustion air curve, more extended, is fully exploited, guaranteeing excellent performance in terms of accuracy and speed, even during the calibration phase. A microprocessor monitors the different stages of the process and allows the correct repetition of the sequences of operation.