1.The shell was made of stainless steel
2. Using CREE XPE LED with high brightness, small power consumption, battery sustainable work more than 2 hours.
3. it's so small and very suitable for putting in a pocket or hung on key chain, and very convenient to carry.
4.Using AAA battery, it's easy to buy it in the marke
5.The flashlight body with scale label, can measure sizes of small items .