9 BRIGHTNESS LEVELS SATISFY MULTIPLE LIGHTING NEEDS. There are 3 color temperatures, 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 select different colors and different brightness. Most musicians prefer full power with both 3000K and 6500K LEDs. Stable light source without flicker or glare, protects your vision and reduces eye fatigue. PROFESSIONAL Wide Beam 19 LED with Anti-glare Shield 19 beads of LED mean wider lighting area, more uniform lighting effect than the 10 or 14 LEDs. Illuminates up to four A4 pages. Features Anti-glare Shield Design - A discreet rear fin directs strong light away from the audience and back to sheet music. Let our music stand light quietly and beautifully illuminate your sheet music and the audience focuses on enjoying your music without being disturbed by bright light. Perfect for rehearsals, concerts, art STOP WASTING MONEY ON BATTERIES - EVER HAS BUILT-IN RECHARGEABLE 1800MAH LI-ION BATTERY, enjoy your wireless up to 60 HOURS reading without charging (at low brightness). No need to have an electrical outlet during performances. Easily charged from USB ports. Standard Micro-USB cable included. AC CHARGER NOT INCLUDED. You can keep it plugged in all the time if needed. 4-segment blue charging indicators. Remaining battery life button. Save your money and more environmentally friendly. SUPER LIGHT WEIGHT 8.3oz, EASY TO USE Portable Light weight, easy to travel with and maneuver wherever you want. The padded sturdy and large mouth clip provides stable attachment to music stands, headboards, pianos, desks and craft tables. Soft padding to prevent damage to your valuable instrument surface. INFINITELY 11in FLEXIBLE NECK that allows you to easily make precise adjustments. The clip's mouth is 2.36 inches wide. Versatile - This music light base can stand on its own and works as a desk lamp.