i have dumb quetion. . .(idk anything about lamps)

940nm, 850nm, 660nm, 630nm, 610nm, 590nm
570nm, 530nm, 510nm, 470nm, 460nm, 400nm
what is nm ???is that size of the LED lamp?

for good growing you need blue, red and deep red spectrum.
whats differences between normal led and full spectrum led?
can i just use normal LED Lights?
MG.Snake Reviewed by MG.Snake on . LED grow lights... input please. Hello guys, I'm exchanging eMails with a representative from a LED company. I asked him if they could produce a custom light for growing, and here's what he told me: Our options are as follow: 940nm, 850nm, 660nm, 630nm, 610nm, 590nm 570nm, 530nm, 510nm, 470nm, 460nm, 400nm and a total of 64 LEDs in the bulb. Rating: 5