I use this:
https://www.amazon.com/Brivation-Portable-Gooseneck-Rechargeable-Brightness/dp/B078JV9Q5N/ref=sr_1_6...
Clips to shelf, USB rechargeable battery (so no hum on your system), flexible neck so you can put light where you want it, and dimmable.
https://www.amazon.com/Brivation-Portable-Gooseneck-Rechargeable-Brightness/dp/B078JV9Q5N/ref=sr_1_6...
Clips to shelf, USB rechargeable battery (so no hum on your system), flexible neck so you can put light where you want it, and dimmable.