... of halogen lamp 4. 30,000hrs lifespan 5. no UV or IR high brightness 1×4w MR16 led spot light with gu5. ... Functions:-Strong point: excellent optical design with double reflector, Light more focus, Better light effect, Better light efficiency-No glare, No dark zone- ... 40,000hrs, 20 times of halogen lamp-Brand new optical design, light performance as well as halogen lamp(Multiple small relfectors design, ...