The EC fan is more windy than the AC fan, more energy efficient, and can work in the 70V - 270V voltage range, such as work under on 110V, 115,120V, 220V, 240V ,the fan speed are the same.
Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright
EC stands for Electronically Commutated, and it combines AC and DC voltages bringing the best of both worlds; the motor runs on a DC voltage, but with a normal AC supply.
Good for cool xboxs playtations, rokus, TVs receivers, mondems routers, dvrs, computers and other audio video electronics.
80 x 80 x 25 mm ( 3.14 x 3.14 x 1 in. ) / 120 x 120 x 25 mm (4.72 x 4.72 x 1 in)| Rated Voltage :90V to 270V |