The GVM Dimmable Bi-Color S900D is a professional-grade photo and video lighting solution designed for long-lasting performance, with a lifespan of up to 70,000 hours and a high CRI rating of 97+ for accurate color reproduction. It offers an adjustable bi-color temperature range from 3200K to 5600K, with brightness control from 0 to 99%. The light is built from high-quality ABS and features a built-in cooling fan for effective heat dissipation. This versatile light can be placed on a light stand, the ground, or a desk, providing flexible options for various shooting needs. It also comes with an intelligent app control system, allowing users to control the light via mobile devices by downloading the GVM app. The S900D has both master and slave wireless control functions, where each LED panel can act as the master to control other lights in the series. Additionally, the LCD screen, 360° rotation capability, and a four-leaf barn door ensure precise light control and customizable fill lighting for optimal results in any creative project.