Our MPPT controller upgrades the spraying three-proof paint process，which covers on the surface of circuit boards to make them dustproof , dampproof , mould proof and be adapted to hot , humid and corrosive circumstances.

Insulates,protects and seals eletronic parts.It can form a shiny protective film on the circuit board, So as to improve the reliablility of ldsolar controller and guarantee their service life

Upgrading from May 2021, Please subject to  LDSOLAR shipment