A desk lamps always provide task lighting for reading, writing, studying, crafting, computer work, and more. <br> For this reason, Winshine rechargeable desk lamp provide the following: <br> <br><br> Clear, bright light that’s easy to work beneath. <br> An adjustable design that can be positioned to accommodate a range of tasks. <br> The evenly distributed LED chips, relatively focused beam with minimal glare.<br> LED desk lamps offer a versatile and energy efficient option. The functions of the pen holder and the mobile phone bracket, which saves space greatly. <br> USB reading lamp supports USB charging and battery. It can be connected to power bank or mobile phone adapter to supply power for desk lamp. <br> <br><br> <b>Specification:</b><br> Exterior Color: White <br> Color Temperature: 3500K, 4000K, 5000K <br> Lumen: 800lm <br> Voltage: 5V, 2A <br> Power: 10W <br>CRI: >=85 <br> Battery Type: 18650 <br> Battery Capacity: 1500mAH <br> Rotatable Angle: 360° <br>Size: 5.9 x 5.9 x 21.26 inch <br> <br><br> <b>Tips: </b><br> Pay attention to these two characteristics: CRI and Color Temperature. Color Rendering Index (CRI) measures how true to life colors look beneath a given light source. This rating is especially important with desk lamps, where the ability to see contrast while reading and working is essential. Look for LEDs with high CRI ratings between 85 and 100. <br> Color Temperature is a standard measure of a light’s appearance, often referred to as the warm or cool look of a light. LED desk lamps in the Color temperature range of 2700K to 5000K generally provide a clear and pleasing light to work beneath.<br>