- Powered by any USB port or 4*AA batteries (not included)<br>- Lightweight and portable、 perfect for travel companions<br>- Simply plug into your PC/notebook USB port by use the USB cable (included)<br>- Totally flexible neck can make the angle however you like<br>- 3-mode control: turn on 4-LED、 16-LED and 28-LED<br>- 28-LED light provides a bright and large working area、 adjustable gooseneck for easy light<br>positioning<br><br />                                                                                                                                Dimensions: 16.54 in x 5.71 in x 2.95 in (42 cm x 14.5 cm x 7.5 cm)<br />Weight: 8.82 oz (250 g)