Affordable, durable & compact. This portable, waterproof solar inflatable lantern lantern is available for under $15 at Walmart. I used it on my most recent camping trip and was pleasantly surprised with how much light it gave off and how long it stayed bright. After three hours on my picnic table it was still going strong. I re-charged it in the sun for about 2 hours the next day and had another full evening of light.