Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Off switch doesn't work, dial doesn't light up.

This product is worthless. The "off" switch trips only occasionally, leaving any lamp attached to it burning 24/7 - unless the "off" switch happens to randomly kick in. The "on" switches work properly, which of course, serves no purpose without functioning "off" switches. The dial does not light up. I have no idea whether the clock timer on it is accurate or not since I would need functioning switches to make that determination. I would love to know if there are any similar products out there which actually work as advertised.