Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not durable

My wife and I are avid orchid growers, and find the 9W lamp perfect for displaying low-light plants (such as phalenopsis) that are in bloom. The colors are pleasant, and the plants seem to do well. We do not use the watering probes as we have our own watering schedules for the various plants, so I can't rate how well they work.We have owned six of these lights over the last five years, and all six have had their timers either fail to switch the light on, or fail to switch the light off. We also had an out-of-box failure that Amazon exchanged immediately. They last no more than about two years. I'm currently sitting with three dead PL-1 lamps next to me, and came here while searching the web looking for instructions on how to "hot wire" the circuit board so the bulb will just stay on. That way I could keep using them with a $4.95 mechanical timer.If they just had a bulb and a switch, they'd be perfect. Unfortunately, the "intelligent" electronics die quickly.