this little tiny flashlight be powerful . from the name you can trust . I have have mag-lite for many year and I have to say that this one be the most convenient of they all . it be durable , lightweight , and very inexpensive . it fit into any pocket , or can go on any key chain . you can even have one in any part of you car or house for those little emergency that ary . the aluminum alloy case be so protected that this flashlight can last a lifetime . it have be a great and useful investment . enjoy !?!