ELPA Mini Black Light Wattage: 4W Compatible Lamp: FL-4BLBH Apparatus Length: Approximately 16.6cm, Width: Approximately 4cm Batteries Used: 4 AA batteries (sold separately) ☆ No hand strap included. No packaging. Only the backing card is included. Not unused. Used once for a child's experiment, but there are no noticeable scratches. Please refrain from purchasing if you are looking for a brand new, unused item. ☆ Please be sure to check the condition of the main unit in the photos. ☆ Lighting has been confirmed. ☆ ☆ Usually ships in 2-3 days. However, shipping is not available on Saturdays and Sundays. If purchased on Friday afternoon through Sunday, it will be shipped on Monday. ☆ We do not create "reserved" listings. Please purchase when you are ready.