... High quality AL alloy housing , special drainage hole design ,good self-cleaning effect and good heat dissipation2. ... UV, anti-aging ,high transparency ,rectangle photometric .3.Optimal design drive , to assure the stable service & long life time ... . Uninterrupted emergency lighting3. Focused reading and Task lighting4. Interior design uses5. Retail store displays6. Closet illumination7. Cove lighting8. ...