... guide panel,aluminum frame 60mm Product name:Light guide panel LED slim light boxModel:XL-LB02Specification:MAX 3.1*1. ... slim,nice appearance, thickness only 28mm, easy to install and open.7. Easy to change pictures, light weight, easy to carry ... % energy saving compare with traditional light box.10.Applicable for business centres, supermarkets, banks,hotels,bars, chain-stores,restaurants,airports, ...