Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked great for a few months...

Slightly complicated to install. You need a continuity tester to determine the hot and neutral lines from both the plug and the socket.Pleased that it is rated to handle 200 watt bulbs, which is a lot more than the 60 watts my old failed unit could handle.Four light levels: 10%, 20%, 60% and 100% brightness.Mine is silent; the instructions note that long-life bulbs and lower wattage bulbs are less likely to make noise.UPDATE after less than a year, this thing has started turning the light on and off by itself, and changing brightness levels randomly, so it is useless. Will try to get a replacement.