My mum's most loved Christmas possession was a fibre optic Christmas tree with silver balls already fixed to the 'boughs' so you didn't have to do anything but plug it in. It lasted about ten years but finally broke last year. She wanted another one just the same but the garden centre where she bought it had since closed and she didn't still have the box to find out what make it was.
I shopped around online and managed to get her a similar fibre optic tree BUT when she plugged it in there was a bang and wisp of smoke and the house fuse went. The company I bought it from were more than happy to send a replacement but my mum didn't want to take the risk of having an exploding tree in the house. 
So I wondered if anyone could recommend a fibre optic Christmas tree preferably one that won't explode preferably four-feet high and green? Any recommendations would be much appreciated.