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. USB-C charging port, charge and use anytime, anywhere, no need to find a power socket, more convenient and faster. Product name: Portable Color Temperature Stick Light source type: COB Product power: 3W x 6 groups Charging time: Fully charged in 1 hour Color temperature range: 2700K - 6000K Product appearance and printed text may vary by batch, but this does not affect performance. Color: Black Material: PC Package Contents: 1 x Portable Color Temperature Stick Note: Only the items listed above are included. Other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. Measurement error allowed is +/- 1-3 cm.