Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cool product, but not reliable

I wish I could give 5 starts, but there were issues. In the first box I got, one of the 4 candles didn't even work. Some of the others didn't flash while they were charging either. I got another order, this time they all worked, but there's still one or 2 that don't flash when charging. Sounds like it's a very comon issue when talking to Philips' support. They seem to be working fine when turned on though. They're not too bright with other light on in the room, but great with all the lights out.