The Ulanzi ML100Bi is a professional 100W COB light with bicolor temperature control and integrated power supply options. This versatile lighting solution offers continuous color temperature adjustment from 2700K to 6500K, allowing for precise tuning between warm and cool white light for various shooting situations. The lamp features an internal rechargeable battery for wireless operation and a USB-C port for power supply and charging. With its 100W high-performance COB LED, the ML100Bi delivers consistent, high-quality light for photography, videography, and studio applications. The compact design measures approximately 15 cm in diameter and 6 cm in depth, making it portable for on-site use. Weighing about 800 g, the lamp maintains a balanced shape for easy mounting on standard tripod systems. The bicolor function eliminates the need for color correction gels, ensuring accurate color reproduction across the entire temperature range. The built-in battery allows for several hours of continuous operation at medium power settings, while USB-C compatibility provides flexible power options via power banks, wall adapters, or compatible devices. The lamp features smooth dimming from 0% to 100% intensity for precise light level adjustments without color shift. The aluminum housing ensures effective heat dissipation and stable performance during extended use. Bowens mount compatibility allows for the use of various light modifiers such as softboxes, reflectors, and grids. The user interface offers intuitive control over color temperature, brightness, and power settings with clear visual feedback. This lighting solution is designed for professional content creators, photographers, and videographers who need reliable, adjustable lighting under various working conditions.