The Galaxy 3 LED is exceptionally light-weight, durable, and economical. The 3 Ultra-Brite LEDs offers full spectrum color for true light and last over 10 years with change of batteries. The shatterproof LED diodes last up to 100,000 hours & have up to 80 hours of continuous run time on 2 AA batteries (included). Its small, light-weight construction makes it ideal for pockets, purses, backpacks, glove compartments, and more, making it one of the best personal flashlights available. This model has a Blue Aluminum Case with 3 Blue LEDs. Blue LEDs are great for general illumination (just like white LEDs). Blue LEDs are good for foggy situations and are widely used by hunters. Up to 80 hours of continuous battery life