I found this just browing their website and it seems to be a good deal for £2.
On the photo it says that it is 100 fairy lights but the decription says 200 so I am not sure but even if they are 100 still can not go wrong for couple of quid.
Good item for a filler.
This is the description from their website:
200 Twinkling Lights - Clear
PLEASE NOTE: These are INDOOR Use only & There is NO option to STOP the lights from Flashing.
This is supplied with a Plug & 12 Spare Bulbs
Overall Length is approx 31 Metres
The bulbs are Clear.
Power Supply : Voltage - 230V, Wattage - 220W
Viking Number Q51-LI20004C