... 3.guarantee: 5 years 4.very easy for installation Description: outdoor led resin advertising words 1.resin material 2. Laser cutting ,smooth ... line;3. Fine welding;4. Inner high quality waterproof LED (with CE/UL/ROHS certificate), over 50, 000 hours guarantee ... , UPS);10. Back screw rods fixing Application: This kind of led resin advertising words for: Shops, business, hotel, auto dealers, ...