National Full White Circular Fluorescent Lamp FCL15N Daylight White 15W Diameter: Approximately 16.5cm Please allow for slight variations as measurements are approximate. Will be reinforced with cardboard and shipped via Yu-Packet Post. Can be upgraded to "Takkyubin Compact" for an additional 300 yen. Please inquire before purchase. Unused, but has been stored at home for a long time. Please understand that whether it can be lit is unknown before purchasing. - Brand: National - Model Name: FCL15N - Color: Daylight White - Wattage: 15 watts - Shape: Circular Thank you for viewing.