... failed, we'll send you a new driver; 2).If LED failed, we'll send you a new LED; 3).Unclear reason, we will ... Water-proof,Anti-UV,Anti-corrosion; Driver with strict & long time test before application; LED chip with color temperature, CRI, lumen efficiency test ... ).Heat Dissipation,housing temperature about 40-55 degree5).Package:carton with 3 times improvement,strong and safe6).Lead Time Sample one ...