The lamp was delivered quickly, was well packaged and is very well made. To time "lasts a long time" to concretize I have inserted three AA batteries at 2400 mA and subjected to an endurance test. I was really excited. 48h full power and even after 62h of continuous operation, the lamp remains lit even when the light then subsides slowly. The lamp is now my firm companion for camping and other outdoor activities. I am very satisfied and can only recommend the lamp!