Various complex places,Six color temperatures for comparison Professional color display for different objects. Convenient and fast,Select different color temperatures by pressing buttons. Professional grade lighting,Color temperature stick to mark professional lighting colors. -C charging port,Charge and use anytime, anywhere, no need to find a power socket, more convenient and faster. Product name:Light source type Portable color temperature stick:COB light source Product power:3wx6 group Charging time:Always on for 1 hour 2700k-6000k The product appearance and printed words depending on the batch, but this does not affect use. Colour:Black Material:PC Package Contents: 1 x Portable Color Temperature Stick Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.