... /cETL,ROHS,REACH 3.instant heat 4.2 years guarantee Latest design infrared patio zero light heater Application Areas- Restaurants, Hotels ... : -Tested and approved by CE,GS,ROHS,EMC,ETL/cETL- Invention Patent No.201110074781.5/201110074735.5 201120084527.9/201120084530.0 ...