
Its unique design allows it to be powered from a variety of sources: 1.) From the built-in rechargeable Ni-MH battery that takes charge from the dynamo crank and from an AC adaptor (AC adaptor not included); 2.) From 3 AA batteries; 3.) From the AC adaptor alone (AC adaptor not included); 4.) From the dynamo crank alone, even with no battery pack installed. Monday-Friday, 8:30 a.m. - 4:00 p.m., North American Pacific Time. 1-800-872-2228 from the U.S. 1-800-637-1648 from Canada 1-650-903-3866, w