Bing Gu, CEO of California Sunlight, shows one of his lightweight solar balloon cookers in Folsom on Friday. It can be used to cook food while camping or in case of an emergency.
Bing Gu, CEO of California Sunlight, shows one of his lightweight solar balloon cookers in Folsom on Friday. It can be used to cook food while camping or in case of an emergency. Lezlie Sterling lsterling@sacbee.com
Bing Gu, CEO of California Sunlight, shows one of his lightweight solar balloon cookers in Folsom on Friday. It can be used to cook food while camping or in case of an emergency. Lezlie Sterling lsterling@sacbee.com

Demo Day presents investment opportunity for California startups

December 05, 2014 05:56 PM