GoGreenSolar is a California company that sells DIY solar kits for residential use. They have a good online presence. https://www.gogreensolar.com/
SUNYEE has an Ebay Store. https://www.ebay.com.au/itm/12V-250W-200W-100W-60W-10W-Solar-Panel-Kit-MONO-Caravan-Camping-Power-Charging-/392003047860