A handy little security light which, although obviously not comparible with a mains powered halogen lamp, generates 80 lumens* through its 15 LEDs and has good reviews (4.5 / 5 on LEDhut). Enter code JUL15 to get it for £13.60 delivered including VAT, plus you can get 20% cash back if you go through Quidco. LEDhut also throw in a scratchcard and a little bag of Haribo sweets.
* that's about a tenth of what a 60w incandescent bulb produces, and fifteen times what those little solar garden lights produce.
An identical looking one on Amazon (rated 3.6 / 5) costs £14.39 with a one year guarantee and no Quidco .