... brightness,low flicker,saving much health 3,high-grade optical lenses,optical loss,good illumination 4,high-power transformers make the ... :The over lighting efficiency up to 100lm/w, superior optical properties, in the same light intensity, the 7w led ... to the light.5. Good heat dissipation:Scientific thermal and optical design, Aluminum housing assure outstanding heat dissipation Our Promises:1. ...