Brighten up your home this Christmas with these mains operated multi function TreeBrights by Premier Decorations Lights are on a clear string, enabling them to easily blend into almost any setting. Switch through the 8 available functions by the press of a dual purpose button on the transformer Button can be held in to activate and deactivate the 8 hours on / 16 hours off timer function, timer is active when the button is illuminated vailable functions: static, combination, in waves, sequential, slow glow, chasing/flash, slow fade and twinkle/flash. Suitable for both indoor and outdoor use, with an IP20 rated transformer that must be kept dry at all times