1. Light source uses 3 pcs CREE LEDs with high efficiency & long lifetime low energy comsumption; 2. Vacuum electroplating aluminum reflector, high reflecting rate, even light spot and light color; 3. High capacity memory-free neon battery, high capacity, no memory, low self-discharging rate; 4. Battery with over-recharge, over-discharge and short circuit protection, ensuring safety as well as long life. 5. Aluminum alloy case, heat resistant and impact resistant 6. Good sealing performance, adoptive to extreme weathers 7. Intellectual chip controls the constant current output to ensure stable luminance 8. Convenient handling, can be held on hand, placed on table, attracted to magnets and hung by hanger.