Came across this earlier today in Tesco. EVerywhere else is usually £7.82 upwards
Brighten up your life with the energy efficient, adhesive bulb.
New from JML, Stick Up Bulb, the battery operated light you can install in moments! Just stick up the base, slide in the bulb and youve got light. Its that easy! This super-bright, super-tough bulb lasts for 10 years. Its completely shatterproof - and it wont get hot like ordinary glass bulbs! No drills, no wires, no electrician! And its safe enough for kids to use too! Illuminate dark cupboards, the basement, toolsheds, bring it camping the uses are endless!
* No wiring or drilling required self adhesive backing
* Super-bright, long lasting bulb
* Just pull the string to turn on and off!
* Super-tough, shatter-proof bulb
See Video - http://www.jmldirect.com/Stick-Up-Bulb-PS5265/