... , large siteProtection rating IP33Life-span 50,000hrsWeight 1450g (lamp), 1720g (total)Certification CE, RoHS and FCCWarranty 3 ... low maintenance cost. Cut cost by reducing re-lamp frequency, especially in difficult to reach area that ... , library, closet, factory, etc. Replace conventional fluorescent lamp or sodium lamp. Energy efficient and environmentally friendly.product detail picture information ...