ISO 9001-2008, RoHS EMC and UL avaliable Digital display and LED display Multiple choice on function - Standard:ISO9001:2008- Voltage range: 220V-240V- Protection: Short-circuit, over-voltage/current, over-temperature- 100% build in full load testing- Waterproof avaliable- Digital display and LCD display avaliable- ODM and OEM sevice avaliable warm wind maker control board