1. Philips 5050, output 150-160lm/w, very brightness 2. Lightest weight, easy to install, lower shipping cost 3. Integrated lens, nice appearance 4. Anti-rust, anti-corrosion, IP66 waterproof 5. Optical PC, high light transmission, uniform light output 6. Separate Module design with 5mm gap, better heat dissipation 7. Provides Waterproof Silicone seal around the Tempered Glass cover, NO water get in 8. 5 years warranty