Transformer for swimming pool lights, 220V to 12V 200W or 400W7 major advantages: 1. High efficiency of toroidal transformer 2. Long service life 3. IP67 waterproof 4. Safe and stable 5. Anti-interference 6. Widely used 7. High efficiencyWaterproof one-piece shell (one-piece plastic shell, high temperature resistance)Epoxy potting (specially selected thermal conductive resin, epoxy resin fully potting, IP67 waterproof, cold resistance)