1、Specialized for Photography: This light bulb is specifically designed for photography, with a high transparency lamp tube that ensures stable illumination and a color temperature of 2900K, providing a true representation of objects with its average rated lifespan of 1300 hours and 300 lm. 2、Bright Light Source: Featuring high performance tungsten filaments, these bulbs emit brighter and whiter light, without any harm to photography subjects, exhibits, or human skin. 3、Outstanding Performance: This 300W bulb generates light of specific wavelengths, stimulating reactions in samples while maintaining superior performance. 4、Precise Filament Calibration and Optical Devices: With flicker free operation and a durable structure, this bulb is equipped with accuracy filament calibration and optical components. 5、High Performance Lamp: Ideal for studio flash photography, this bulb offers top notch performance and versatility for your creative needs.