Why would You even bring 800W usage up and calculate such? For loong time L3+ on stock speed draws 650W down to even 550W with software and hardware mods. Period.
Ok ..I'll take that bet.
www.litecoinpool.org/calc a free LTC pool pays out 105% currently.
Lets call it 650 watts at say 425mh...does that sound fair?
You get this: A loss of -49c a day vs the previous -66c a day in my previous post.
Profitability Analysis
Expected Rewards Costs Net Profit
24 hours 0.01715103 LTC 1.07 USD 1.56 USD -0.49 USD
7 days 0.12005724 LTC 7.49 USD 10.92 USD -3.43 USD
30 days 0.51453104 LTC 32.08 USD 46.80 USD -14.72 USD
The main thing to take away from the previous post, IMHO, is the 60% decline in difficulty and the still low price. IF say price hits $100 an LTC even, it is
my view you still would be losing say -50c a day on this whole endeavor as tht Bitmain L3+'s wane in and out. Only with a lot over $100, say $150 and difficulty
finally putting full miner capitulation into this massive amount of Bitmain L3+'s in the world as not being able to mine, will you then be able to see price and the
halving results for new miners. Until then it is gonna yo/yo the next 2-3 months, not amounting to much more, again, IMHO than the current say at least -50c a day
loss on mining these beasties. They still want like $2k and $3k for the Innsiliocon scrypt miner models that make $2 and $3 a day respectively..so no hope in mining
from that direction. Gonna be a muddied mess for a while or at best, if your electric is cheap enough and you have already ROI'd on equipment, MAYBE you can swap
electric for coin even up for awhile. Maybe even use the heat if you are in Winter parts of the world. But until all the Bitmain L3+ units, again, I'd guess 60% of all
scrypt miners, stumble off the mining field, miners are gonna sell LTC they mine to break even at best and it is gonna be a muddied mess price/difficulty and on any
choice by consumers on miners and any real excitement by ASIC makers to pursue new equipment. As an aside, this will also come to pass, likely about the same time,
with all the models of Bitmain S9's of many flavors. The same thing, they account, again IMHO, for 60% of all sha-256 miners and they need to leave the field as well
for the BTC market to also steady out mining/price and difficulty wise. So gonna be tough to mine in any manner for the next 2-3 months IMHO past your electric use,
even if you have already ROI'd on a Bitmain L3+. Of course, a huge price pump to $150 for LTC could make this all moot, but not counting on it.

Brad
No. Its 650W at 500mh :> or 550W@500mh if You have hardware mod