This item is waterproof LED strip light. IP67. 300 units 3528 SMD LED strips per roll(16.4ft/5m). It can work for architectural decorative lighting, cove lighting, mood lighting, shopping mall decoration and so on. Accessories Because LED strips are highly customized in every project, it does not make sense to pack power adaptor and other accessories with LED strips. So, accessories are not included. Accessories you may need are as follow: 1. 12V 60W Power adaptor. It can work with up to 10m(33ft) single color LED strips or up to 8m(26ft) multi color LED strips. Please search 'LV5000004 Lighting EVER' on Amazon.com to find it. 2. RF dimmer. If you are looking for dimmable feature, Lighting EVER RF dimmer meets your requirements. The RF dimmer is not waterproof. Please search 'LV5000008 Lighting EVER' on Amazon.co.uk to find it.