Happy-top Flexible Eye Care LED Desk Lamp Clip On Table Dimmable Reading Study Lamp, 2 Brightness Level, 2 Color Temperature 5w for Reading Studying Relaxation Bedtime (Silver) The sleek, modern and flexible metal gooseneck provides natural, non-flickering light for stress-free productivity and enjoyment 5W with 2 level brightness (200 lm or 450 lm) and 2 light color (White and warm white), totally 4 lighting modes,meet your needs in different light environments 360 degree sleek, modern and flexible metal gooseneck provides great natural light right where you want it Sturdy clamp allows great versatility,padded foam inserts to protect surfaces well,the clamp opens up to nearly 3 inches allowing this lamp to attach to desks, table tops, shelves, headboards and more; There is a hole(hole size 10x8mm)on the clamp base,you could mount the lamp to the wall, if there is a hook or nail on the wall Frosted Surface Eye Care Lamp with 10 5050 SMD lamp beads ,it is powered either by USB power or normal A/C wall outlet,energy saving and environmental protection