The Cactus RF-60X is a powerful and versatile flash unit designed for professional photographers and enthusiasts alike. With a guide number of 56 meters at ISO 100, it provides ample light for a wide range of shooting scenarios, from portraits to events and weddings. The RF-60X is also equipped with a built-in wireless receiver, allowing it to be triggered remotely using a Cactus V6 II or V6 IIs wireless flash trigger. Additionally, it features a high-speed sync mode, allowing it to sync with shutter speeds up to 1/8000s, and a rechargeable Li-ion battery that provides up to 650 full-power flashes on a single charge. With its advanced features and reliable performance, the Cactus RF-60X is the perfect flash unit for photographers looking to take their work to the next level.