Was just in my local Tesco and noticed they had Energizer Headlight LED x 3 reduced to half price ( web going rate seems to be around £7.50 ).
The Energizer Headlight 3 is great for camping, hands-free working in the dark and general outdoor use. Compact and lightweight, it has two white LEDs with a range up to 65 metres and one red LED, which helps preserve your night vision, with a range up to 15 metres. The LEDs consume very little battery power and will last for up to 8000 hours. The Headlight 3 is rugged and weatherproof, with a comfortable, adjustable fabric strap and a swivelling head that allows you to direct the light to exactly where you need it. It is supplied with three AAA batteries which will last for up to 50 hours' continuous use.