40cm Computer Screen Monitor Light Bar E-Reading Lamp with Bi-Color Temperature 2800K-6500K 10 Levels of Adjustable Brightness for Laptop Desktop Office Home Features： [Broad Compatibility]Well designed eye-conservation lamp for computer monitor screen, lighting up the desk space in front of your monitor, suitable for both desktop and laptop, easy to install through the clip.  [Adjustable Bi-Color Temperature & Brightness]2800K-6500K offering 3 lighting modes: white light, warm light, warm white light; 10 levels of brightness  adjustable, satisfying your different needs. [Eye-conservation Lamp] With high-qaulity lamp bead chips, 120° large angle, adopt asymmetric circuits, reducing reflecting and glaring; bright and soft light can better protect your eyes. [USB Power Supply & Cable Control]Easy to get powered through desktop, laptop, and power bank, no need of frequent charging, no batteries required, environmentally friendly and convenient for use . [Cable Control & Easy to Carry]Brightness and color temperature can be adjusted through the cable controller; compact size and light weight, does not increase too much carrying burden, convenient for storage and portable application. Specifications： Color: Black  Material: ABS housing + transparent PC cover Beam Angle: 120° Working Voltage: DC 5V USB power supply Power: Max. 5W Color Temperature: Warm white: 2800K-6500K Product Size:  40 * 2 * 2cm/ 15.7 * 0.7 * 0.7inch Product Weight: 136g/ 4.7oz Note： The computers showed in the pictures are not included. Package List： 1 * Light  1 * Clip