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ECO Solar panel Corner Mounting Brackets Set of 4 Ideal for bonding to the roof and no need for drilling. Strong side support for small and large solar panels. ·Great for motor-homes, camper-vans, caravans, lorries, buses, boats and yachts. Can also be used on flat roofs of buildings, sheds, garages or other flat surfaces. ·For large solar panels 100W and more, used on high-speed vehicles, an additional pair of our side brackets or our six bracket kit is recommended.