It is without blink. An easy way to test the lamp is use your phone, just open the camera app, focus on the lamp's lighting area, if you find some ripple in your phone screen, then the LED is poor quality

The clip-on lamp can be used in bedroom, study room, and is mounted to the headboard or desk

Our lamp use strong gooseneck to ensure the lamp head don't sag due to the gravity. 

Only one Lamp beads, which can save 85% less energy and last 25 times longer than incandescent bulbs

Portable, flexible, energy saving

Apply places: bedside reading, office, outdoor use, study, classrooms and so on