Toss my vote in with the "Keepers". The Moningstar will be yawning when cheap inverters are headed back to the USA in their third reincarnation. Your power brick will run cooler and there isn't anyone running around on this planet thatvcan convince me an alternating current device won't live longer with pure sine wave. Cheap inverters are FLAKY voltage and waveform wise. First blown laptop brick was brought to me yesterday by Panchito from a rural rancho. Tomorrow morning I am going to make up a pure D.C. booster. 12.0 volts to 19.5. The brick smells like the inside of a British car fuse box.