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good
I BELIEVE THAT THE CONVERTER WAS NEVER TESTED AND PASSED THE TEST, AS SOON AS I HOOKED IT TO THE BATTERY, IT SHOWED THE RIGHT VOLTAGE, THE FAN STARTED, THEN ALL AT A SUDDEN THE CAPACITOR BLOW UP. AS FAR AS THE CONTROLLER IT HA A BROKEN LAMP BOTTON (( PRODUCTS MUST BE TESTED AN CHECKED THROUGHLY BEFORE DELIVERING TO THE CUSTOMER))