AUTO COOL 200 AMP NOW IN GLOSS BLACK POWDER COAT.  THIS IS A LOW FREQUENCY CONTROLLER FOR BRUSH TYPE FANS ONLY.  DO NOT TRY TO DRIVE BRUSHLES FANS WITH THIS OR THE FAN WILL VIBRATE AT LOW RPM.  IT HAS THE STANDARD FAIL SAFE, A/C FAN SPEED CONTROL AND THE COOL DOWN TIMER,  TOP AND BOTTOM CHASSIS MADE FROM 1/8 INCH ALUMINUM PLATE.  ONE YEAR WARRANTY ON ALLOUR PRODUCTS.