Aluminum printed circuit board designed to work on 12V DC saturated with 5050 LEDs. Size of the aluminum printed circuit board Ф24mm, total light intensity: 100 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 that of the environment, but not to exceed 80 degrees