So - I've been under a rock for a while, but just realized that I have three L3+ units in storage.  At the time I stopped mining because they were worthless -- but now it seems they can make a profit.

Question is I see many options for firmware for these units.  One from the manufacturer to make it an L3++.  It supposedly saves electricity?

Any advice on legit firmwares for these units?  I upgraded to L3++ and I have not checked the power usage, but seems to work normally.

Thanks and I guess I am back into this hobby.  I've always used litecoinpool.org -- they same to pay the best (although it would be nice to receive DOGE coin paid out separately from LTC).