Usage Tips:9 BRIGHTNESS LEVELS SATISFY MULTIPLE LIGHTING NEEDS There are 3 color temperature, 3000K warm, 6500K white, & 4200 mixed. 3 brightness levels for each color- Low/Medium/High. The light pattern was very uniform. CUSTOMIZE your light pattern by long/short pressing to choose different color and different brightness. Most of musicians prefer full on with both the 3000K and 6500K LEDs. Stable light source without flickering or dazzling, protects your vision and reduces eye fatigue.PROFESSIONAL Broadbeam 19 LED with Anti-Glare Shield19 beads of LED mean wider illumination area, more even lighting effect than those 10 or 14 LEDs. Illuminate up to four A4 pages. Features Anti-Glare Shield Design - A discrete back fin directs bright light away from the audience and back to the sheet music. Let our music stand light quietly & nicely shine your music sheet and the audience focus enjoying your music without being bothered by bright light. Perfect for rehearsals, concerts, artNO MORE WASTING MONEY ON BATTERIES - EVER FEATURES BUILT-IN RECHARGEABLE 1800MAH LI-ION BATTERY, enjoy your wireless up to 60 HOURS reading without charging (at low brightness setting). No need to have a power outlet during performances. Easily charged from the USB ports. Standard Micro-USB cable incl. AC CHARGER NOT INCLUDED. You can keep it plugged all the time if necessary. 4 segment blue charging indicators. Remaining battery life button. Save your money and more eco-friendly.SUPER LIGHT WEIGHT 8.3oz, EASY TO USE Portable Light weight, easy for travel, and maneuver any place you want. The padded sturdy and big mouth clip provides stable attachment to music stand, headboards, piano, desks, and crafting tables. Soft pad to prevent your valuable instrument surface from any damage. INFINITELY 11in FLEXIBLE NECK allowing you to make precise adjustments easily. Clamp mouth is 2.36in wide. Versatile - This music light base can stand by its own double as a desk lamp.