outdoor slim LED lightbox 1, Quick delivery. 2, LED life: 70.000 hours ... for your reference!!! Welcome to further understanding!!!Outdoor slim LED lightbox:1. Application: image sign, chain store, ATM, shops, ... inner plank, fluorescent lamp, ballast, wires etc.4. Usage: indoor/outdoor, wall mounted, advertising etc.5. Printing: silk screen ... http://minger.en.alibaba.com outdoor slim LED lightbox