Lightly used—I’m just super inconsistent about this stuff. In perfect like new condition without box. Lumo’s unique two-tier dermal heating system is only available in commercial machines. The higher tier of heating is only triggered for a few seconds (less than 20 seconds) on cooler skin and where the dermal temperature is detected as being higher, the features automatically defaults to the lower heating of 42 degree Celsius. The Lumo’s RF core has a proprietary targeting system that delivers 95% heat into the dermal layer and features an active semiconductor-based cooling system that removes excess heat from the skin. EMS mode operates at 100 Hz/s and packs an average power of 3mA. Its EMS mode used once a week can provide ongoing benefits for at least 72 to 96 hours post-use.