1. Brightness:  According to the color of the light
2. LED service life: 10years
3. LED quantity: 16pcs
4. LED color: standard red LED is perfect for clear weather, other colored LED is also workable.
5. Features: completely water proof, it even floats. It still can work underwater 1/2 mile. Contains a strong magnet for placement on vehicle.
6. Mainly used on police, government, fire and so on.
7. Material: High strength plastic PC,TPE and TPR, it even no problem allowed a car drive over it.
8. Product function: This light has 9 user-selectable flash patterns: Rotate, double blink, single blink, alternative, SOS(Morse code)for rescue, solid on(high), solid on(low), 2LEDs flashlight and 4LEDs flashlight.
9. Note: Blue, Green and White color LED versions will run about 70-80% of listed times. Battery performance can vary from factors such as temperatures, age of the battery, etc.