i use the older model Pal Light,that's the six volt battery in a rubber case with one LED and a good lens.small size and on a two week canoe trip i have never had to change the battery.it throws a good beam across a campsite and has a low setting and a flash.it also stays "always on" with a very dim light which makes it an easy find in a dark tent or crowded gear bag.i'm told the natural drain on the battery is used to make that LED glow.even left unused in the "off" setting with the glow working the battery is still good in the spring.the switch is worked thru the rubber case so it's somewhat water proof. a dog chewed--no joke--Pal is kept around the house to back up my seven C cell "raccoon light"