An indispensable tool for photographers and videographers, the Westcott Np-F970 Dual Battery Pack with Charger bundle is designed to keep your Led light fixtures powered when traditional Ac power is not available. This comprehensive kit includes two robust L-Series 7.4V 6600mAh 48.8Wh Lithium-ion batteries, renowned for their durability and reliability, along with a high-quality dual battery charger. Specifically engineered for compatibility with Westcott's L60-b Cob Led and other fixtures that accept Np-f batteries, this battery bundle is a portable and convenient power solution for your lighting needs. With a runtime of up to 2 hours at 100% brightness using fully charged batteries, and an extended runtime of up to 4.5 hours at 50% brightness, this battery pack ensures your Westcott's L60-b Cob Led light is always ready to perform. The included dual charger, utilizing a Usb connection for power, further enhances the portability of this bundle. It eliminates the need for a bulky Ac power supply, allowing you to simply plug the charger into a standard Usb charger or a Usb power bank (requires a minimum voltage of 2.1A, sold separately). This feature makes the Westcott Np-F970 Dual Battery Pack with Charger bundle a truly efficient and mobile power solution for your professional lighting equipment..