Very heavy
I ended up returning this product because it was so heavy!!! My intentions were to clip the light onto my existing pole lamp and use the light on my face for 30min a night , but due to its weight, it wouldn't stay , so I ended up having to hold it while I moved it around my face,I only used it twice due to this  so I can't tell you about effectiveness. It want the product for me.
Rating: 3 stars