Found in Home Bargains store in Merrion Centre, Leeds and i'm unsure if it's national but it is quite possible. Lego Shop sells these for £7.99 each but I think that £1.99 is much more reasonable.
Could make a nice stocking filler.
Girls will love using this cute 2x4 LEGO Friends Key Light to illuminate their path!
The bright LED Key Light is featured in the signature colours of the iconic LEGO Friends property.
It is a perfect attachment for bags, belt loops and more!
This powerful 2X4 Brick Key Light can help with finding your keys or sneaking around your room after bedtime.
Simply press and hold the button for a handy source of light whenever and wherever you need it!