1. long lifespan: over 60,000hours. 2. customized led quantity available. 3. low power consumption. 4. various colors compound with single, double or seven colors changing. 5. cool beam for safe touching. 6. waterproof and dustproof with pc cover. applications: suitable for residential and commercial lighting, especially for lighting sensitive objects in shop-windows, galleries, museums, emporiums, taverns, meeting rooms, exhibitions and so on.