We are very satisfied with the radiator. 2 stages 300 and 600 W, therefore universally usable, depending on room temperature. The on / off switch works medium nylon cord: no more tearing. By mistake the spotlight remained x 3 hrs. Continuously, and although this is not recommended showed the outer Kubststoffgehäuse no damage. The attachment is a little tricky because the wall mount made of plastic. One is me promptly broken when adjusting the angle of inclination (max. 45 °). I did however get immediately free manufacturer-approved replacement.