Clip-on desk light, dimmable LED light. - Model Name: Y07CFL05W01 - Power Supply: DC5V 1A - Power Consumption: 4W - Clip Width: Approximately 20mm - Color: Black The neck height is freely adjustable. The light can be adjusted in three levels of brightness. Used a few times, and I'm selling it because I've replaced my desk. For those who understand that this is a used item. Thank you for looking.