What if i put simple lamp? or Led with resistor?

Here the Panel is loaded with a 12 Ohm resistor. I let LTSpice compute the output voltage. Obviously, the current out of the Panel and into the resistor would be 14.37/12 = 1.197A

 

What if i put simple lamp? or Led with resistor?

Resistor has a straight I-V curve starting from 0 - from Ohm's law V = I*R.

If you draw this straight line, it'll cross the Mike's green line somewhere. The crossing point determines the voltage and current you get with the resistor. If you find a good resistor it may go right through the MPPT.

 

The resistor into which that panel can put the maximum amount of power is found by dividing the Vmppt by Imppt, or 17.9V/1.11A = 16.13 Ohms.

 

Well done Mike