Lightess Dimmable Music Stand Lights Clip on Book Light Piano LED Reading Lamp USB Desk Lamp, Black;

2 Bright Levels
-3 Power Sources(AC + USB + Battery)
Feature:
Style: Clip-On Music Stand LED Light
- Nine bright LED with 10 million hours life time;
- Flexible gooseneck allows for precise light adjustment;
- Padded clip provides stable attachment to music stand;
- Two brightness level easily controled by power switch;
Can be Powered By:
- 3 x AA Batteries (Not Include) Or
- AC Adapter (110-240V) Or
- USB (like AC+USB or Laptop USB Port...)
It's pretty convenient for you to use under most circumstances!
Package Includes:
-1 x Music Stand LED Light
-1 x USB Port AC adapter
-1 x USB Charge Cable