Specifications: .
Emitter Type: 5 LED Bulbs .
Brightness: 10 Lumens .
Light Color: White .
LED Quantity: 5 .
Lighting Distance: About 30m .
LED bulb lifespan: 100,000 hours . .
Material: ABS Plastic .
Color: Black
Note: If the light doesn't work, please change the new batteries and try. If item still doesn't work for you after change New batteries. Please make sure that direction of batteries put in tray correctly. Please flip one of battery, match the symbol of battery tray, "+" to "+" "-" to "-". as the last picture of this listing. This LED bulb is light dependent on correct DC current direction only. So, it won't lights up if you put wrong direction of batteries. Because the LED bulb's life time almost forever, it won't burnt except the voltage of power overload