A well-designed lamp, very powerful, with good value for money. Two minor criticisms: - The transition from powerful lighting efficient lighting is not practical: It was fast to jump a notch and ending up in flashing lights, and sometimes we doubt whether one is in or powerful economic position and must be repeated a cycle to complete ensures. Now I get my hands on the lamp LED side: If it burns, I'm strong light, otherwise I'm saving lighting - The deterrent prices 5000 mAh battery (3000 mAh while the batteries are at a very reasonable price). Furthermore, they are sold by 2, and 3 as it takes, you must purchase 4!