ETOPLIGHTING 10 LED Super Bright Lamp - Orchestra Music Stand Light Clip On Book Reading, Desk Travel Light APL1315 SUPER BRIGHT 10 LED LIGHT - Individual LED bulbs have a total life span of 50,000 hours! NO FLICKER - The Optical Grade Lens Provides Evenly Distributed Light with No Hotspots USB, OR BATTERY POWER (YOU CHOOSE) - USB Port and batteries included. HEAVY DUTY CLIP ON STYLE - Clip it to Almost Everything without any damaged gripped surface MULTI-USE - Great for Music Stands, Pianos, Orchestra Pits, Reading, Work Tables, Mixing Tables, DJ's, Craft Tables and great for reading (iPad, Kindle, tablets and regular books)