What a bright idea for a way to connect with your tech-obsessed customers and supporters – make a gift or giveaway of these solar-powered Powerbanks. These durable plastic chargers are available 4000 and 5000 capacities. Charges in sunlight. The looped top lets you easily attach it to a carabiner clip or keychain, so you’ll always have it close by for your next power emergency. Great for camping, sporting and outdoor-themes activities and events. Add your school,sports team, organizational or company logo or message to customize.