Anthem One is a modular lighting system. You need Anthem One, Anthem Power and your choice of Anthem Light Card to have a fully functional Anthem lighting system. You can choose between a pre-assembled kit or selecting your own preferred components. Kits are often bundled with free accessories, saving you money and time. And, don't forget a battery! With a Yeti lithium-ion battery you can go anywhere in the world with your Anthem One lighting system.