Hi guys I´m doing an experiment in thermocouples electricity generation by thermal radiation of Sun (As an addition to Solar panels). I´m still in high school and I don´t know a lot about the topic. I would like to simulate sun thermal radiation with a 100w incandescent light bulb as an independent variable and the voltage generated in a "k type" thermocouple as the dependent one. I read that tungsten filaments have black body properties approximations. What measurement should I take and vary if I would like to analyze Sun thermal radiation? How can I relate temperature at a certain distance with the wavelength, temperature, wattage and resistance of a light bulb filament? Would it be more convenient to use a halogen light bulb, another type of light sources or color filters? Why? Any help would be really appreciated and sorry if my English is not good, I´m a Spanish native speaker.