I have just brought a Rolson light wand from Tescos and its a great little addition to a bug out bag. In short it's a single led tourch one end and a single led that illuminates a plastic tube acting as a light diffuser and also a whistle. The wands easily as bright as a glow stick but the huge advantage being u can switch it off. I will copy a link below for them there cheep at £1.66 each. There a great little product so I thought I would share.
http://www.toolsdiy.co.uk/shop/view/electrical-tools/light-wand-and-whistle/
http://www.toolsdiy.co.uk/shop/view/electrical-tools/light-wand-and-whistle/
