DONGGUAN XINGDONG ELECTRONICS CO., LTD.
Add: NO.2, Dagao Hengfeng 2nd Road, Changping Town, Dongguan, Guangdong, China
Tel：+86-769-83660708
Fax：+86-769-83660718
Email：info@d-fan.com.cn
URL：http://www.szdosense.com/eng/
"220V AC Cooling Fan" on occasion to poor ventilation conditions: heat sink surface density of less than 0.024W / cm2, can be naturally cooled. For better ventilation of the occasion, the heat flux "220V AC Cooling Fan" radiator surface is greater than 0.039W / cm2 and less than 0.078W / cm2, must use forced air cooling. On occasion to poor ventilation conditions: "220V AC Cooling Fan" radiator surface heat flux density greater than 0.024W / cm2 and less than 0.078W / cm2, must be forced air cooling."