Aluminum printed circuit board saturated with powerful LEDs with a power of 0.5W each with the most modern architecture at the moment and case 5730, light intensity 120 lumens per watt. Size of the aluminum printed circuit board Ф27mm, total light intensity: 480 lumens, LED warranty 3 years, money back guarantee in case of dissatisfaction 10 days. Important !!! - all high-power LEDs need passive cooling, in most cases a good contact with the luminaire housing is enough, as a rule the operating temperature should be up to 40 degrees Celsius above the ambient, but not to exceed 80 degrees.