Rugged, durable, and rigid. The Boulder 100 Briefcase Solar Panel is built with strong tempered glass and an aluminum frame with added corner protection for temporary or permanent installation. Composed of two Boulder 50 Solar Panels (100 watts total) chained together and connected by a hinge. Equipped with an integrated kickstand to help get optimal angle to the sun. Included a protective canvas bag for easy carrying. Use with a Goal Zero portable power pack or portable power station to charge your gear day or night. he largest of our Boulder monocrystalline solar panels (200W total) in an easy-to-carry briefcase form makes for the ultimate on-the-go setup. Whether you're boondocking, camping, or needing panels for your backup, the Boulder 200 Solar Panel Briefcase is ideal for any off-grid scenario.