OrthoPulse, a light irradiation device that supports orthodontic treatment. - Brand: OrthoPulse - Accessories: Charger, case - Function: Light irradiation device for orthodontic treatment - Colors: Blue, White Thank you for viewing. Lamp lighting confirmed. Purchased on Mercari. Used for 1 year and 3 months, including the previous owner and myself. It seems it was purchased in 2021. I purchased it recently. The red lamp sometimes flashes, so I'm not sure if it works. This is being sold as a junk item. Please understand that we do not accept refunds or returns for issues such as it not working. We are asking for purchases from those who can repair it if it breaks, such as if you need parts! It has been wet disinfected and cleaned.