H.YOUNG Wall Deco LED Photo Clips String Lights,Perfect For Wedding Surprise Office celebrate And DIY Hanging Phtoes,20 Clips, 13 feet, Warm White Each clip contains a LED light. New idea for hanging photos and artworks . 4M is the best suitable length for 20 clips after test For home, it is great to create a romantic atmosphere or make a sweet surprise! For office, it's widely used for celebration! You can enjoy all photos at night 3 display modes : On/ Flash/ Off for easy installation. A perfect lighting decoration for living room, studies, dormitories, galleries etc Total length is 4 meters / 13 feets. Total 20 clear photo clips. The gap between each clip is 7.9 inches (20 cm) For portable use, it requires 3AA batteries (not included) and no AC plug required. You can use it anywhere, safe for outdoor or indoor use