... , no light, no pollution,no radiation Reliablle, safe and long life heat quickly,evenly Multi-function IR heater panel for sauna room ... /to manufacture infrared heater FeaturesIt is made of the high tech ... .24v,36v,48v,110v,220-240v wave length of the infrared:7-16um flame retardant rating:UL94V0 insulation performance:3750v Standard ...