I've just be taking a look inside one of them low power night lights. The kind that has a 13 amp plug as part of its construction so just plugs into a 13 A socket. It consists of a small pcb that does all the switching logic and drives a high-brightness led. It has a CE mark and is double insulated. Thing is, there is no sign of a fuse inside the unit. (Not that I can see anyway). So afaik we have a 0.6W device protected by the ring main rated mcb (15A/30A?) + RCD (30mA). So, 1) the device in normal operation is taking less than the trip current of the RCD (~2.5mA : 30mA ie 12 times less) 2) a fault in the device would easily melt the wires etc within in before getting anywhere near 15 or 30A. Just some thoughts on safety anyway. Make any sense?
- posted
18 years ago