How to make a full spectrum lamp from LEDs?

Question

Electronics

Good afternoon!
I live in a city without sun (St. Petersburg) and I understand that I really need it.
I learned that the spectra given out by ordinary lamps are not at all like solar ones. I also know that LEDs are sold with different wavelengths. Do you think it is possible to buy LEDs with different wavelengths and turn them on at the same time to get a semblance of the solar spectrum?

Answer 1

Of course you can. But you will have to experimentally select the number (or brightness) of LEDs of different colors to make the spectrum uniform. And for this you will need a device ( perhaps a homemade one ) to evaluate the spectrum of light. The error of a homemade device will be quite enough.

Answer 2

If you stick LEDs with different wavelengths, you get a spectrum like cheap CFLs, with several peaks, completely different from the sun. A full spectrum LED lamp will never work your way. You need to either look for white LEDs with the highest quality and "sunniest" phosphor, or use the most "sunny" lamps, such as incandescent lamps (conventional, halogen ..) and electric arc lamps (xenon, HID).

Answer 3

https://habr.com/ru/post/144514/