The EU6500is is not only portable at a dry weight of 253 lbs., but like other smaller EU models (the EU1000i, EU2000i and EU3000is) the all-new model also incorporates inverter technology that delivers clean, high quality electricity that is optimal for powering of the ever-increasing number and kinds of sensitive electronics. For example, computers and power-sensitive testing equipment often operate best with "clean power" - consistent electrical current that has a stable sine wave or signal. A computer without clean power would likely either freeze, shut down, or be interrupted...
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