I already have the 1 X 18650 L2P body. Will the MPP-1 Head gives it's max throw with just one 18520? Or will I need an extender (2X18650)as well?
vin,
Disclaimer: I'm not an expert with electronics.
With that clarified, according to the specs, the MPP-1 maxes out at 275 lumens w/ 3x18650s. If you add another extension to accommodate (4) 18650s, you'll extend the runtime from 2.5 hours to 3.5 hours, but not the lumens. So lux will be maximized with 3x18650s since the head can accommodate only 16 total volts, not 16.8 (which is 4 x 4.2v per 18650). Any fewer than 3x18650s will decrease throw accordingly.
http://www.solarforce-usa.com/product.sc?productId=77&categoryId=20,
http://www.sbflashlights.com/Solarforce-Lights/Solarforce-Masterpiece-PRO-1-p51.html
I have no problem being corrected if this is not right!
John

