The batteries are dead. I think it will light up if you replace the batteries, but I can't guarantee it. It's a Panasonic LED neck light, model BF-AF10. It's a type that you wear around your neck, freeing up both hands, which is convenient for nighttime walks or work. It's lightweight and compact, making it suitable for carrying around. [Brand] Panasonic [Model Number] BF-AF10 [Color] Lime Yellow [Condition] No noticeable scratches or stains Thank you.