1. Higher efficiency of energy saving (power factor >0.98) 2. Long life span,>60000hrs 3. Low luminance decline(20000hrs78Ra) 5. Less manpower and maintenance cost 6. No harmful strobe low glare 7. Broad voltage (AC90V-270V,DC12V-24V),wide adaptable range of power supply 8. Selectable color temperature 9. Without preheating 10. Green and environment friendly. One wooden carton per unit.