120 hours! No plug. Battery operated. Brilliant. For use on wreaths, garland, small trees and centerpieces. Longer lasting and more efficient! Last over 120 hours (Battery selection may affect performance. Do not mix old and new batteries. Do not mix alkaline, standard (carbon-zinc), or rechargeable (nickel-cadmium) batteries. When product is not in use, batteries should be removed. Dispose of batteries safely). Great for wreaths and centerpieces. 10 battery operated bulbs. Requires 2 AA batteries (not included). For indoor use only. Requires 2 AA 1.5 volt batteries. Install polarity properly (not included). Ensure battery compartment is free of debris before installation. In USA 888-476-7100. www.productworks.com. Made in China.