Dear sir,
Good day to you !
Currently we have a newly designed solar panel charger that maybe suitable for your market, below info for your reference:
28W folding solar charger, A grade monocrystalline solar cell, intelligent charging, triple USB ports, with 9V quick charge function.

Based on different quantities, price range can be from US$2x-3x/piece.

Any comments on the product, please let us know anytime.

Regards
Sam

SHENZHEN LONSEM SOLAR TECHNOLOGY CO., LTD
CE, ROHS, FCC CERTIFIED SOLAR PRODUCT MANUFACTURER
Mobile/WhatsApp:+86 18998938496