The close cluster of 5 extremely bright white LEDs makes this mini spotlight the perfect little clip-on light for many purposes. Attach it to your baseball cap visor to light your way at night or to provide light to your work project (car repairs, model building, painting, etc.) Clip it to the edge of your laptop when typing at night. Clip it to a car vent to read maps. Use it as a reading light in bed or on a bus. Soft touch push button on/off switch. Convenient light weight (less than 3/4 oz.) and small size (2.3" long x 2" high) makes it easy to carry anywhere. Uses 3 replaceable LR44 batteries (included). Now comes in a black casing instead of silver as pictured.