XPRESSION 250 TC is Tunable white Fresnel, Pure color temperature, built-in 0-100% dimmer, Beam angle 10°-60°(Manual control), Field angle 18°- 88°, simple and quick adjustment for choosing beam Angle base to different distances and locations, manual CCT bottom on body, XPRESSION 250 TC with Tunable CCT 4000k -6500k, this model is designed for theater, television, cultural centers, studio, multi-function meeting rooms and other small and medium applications.