Ebay offers Portable Solar Panel Powered LED Lights Bulb Light Tent Lamp Camping Out/Indoor for $9.85 (reg. $11.59) after code with free shipping. 

Apply Code: BESTGIFTS 

Product Description:
1. Solar bulbs with charging solar panels. 3.6V 800 MAH lithium -ion battery can easily charge 3.5m (11.4FT) charging cables through solar panels. On sunny days within 3 hours, and then light up at night for 4-6 hours, saving you some electricity bills
2. Solar lights used indoors and outdoor. The solar lamp is based on solar energy, which is clean, endless and environmentally friendly. In the sun, solar panels can convert solar energy to electrical energy. It is an ideal choice for indoor or outdoor use
3. Portable and lightweight. This is very practical and very easy to carry and store. When you camping, it runs well in the tent. Lighting time is up to 50,000 hours, and the service life is long
4. Easy to install or use it. There is a metal hook on the top of the LED light that can be easily hung. Durable and weather -resistant, you can not hesitate to put it on a stormy or rainy outdoor
5. Please note that the solar bulb has no light sensor for longer battery life and environmental protection, and it will not automatically open in the dark. You should open/close it manually