1.American original high-power CREE 3W LED(P4) 2. LED life can be used for 100, 000 hours 3.Double O-ring water proof design Specification:1. Use American original high-power CREE 3W LED(P4);     2. LED life can be used for 100, 000 hours;3. Colors: blue, black and silver;4. Double O-ring water proof design;5. The maximum depth reach 100 meters(328 feet); 6. Use 3XAA batteries;7. LED luminance:93-100LM ;8. Working time:2-3hrs;    9. Color temperature:6500-7500K;10.Product size: 147(L)x48(max.D)mm;11.Weight:208g;12.Beam angle:15°from center to side.