No battery or bulb required! It's a wind up generator. Ideal for home use, your vehicle, boat, camping, emergency kit. Recharing anywhere, anytime, without using any power source! One minute cranking gives you up to 30 minutes of lighting! Regular price: $28.00Sale price: $10.95 Thanks for visiting our online store. We are highly faithful to our high quality products, and present it in supersized pictures(click for larger one). Also, we guarantee to handle your order and question within same business day!