... — 4output efficiency (W)30 — 5050 — 100output constant current precision+/- 2%+/- 2%representative efficiency96%working circumstance temperature-40°C ... reach 96%.2. Adjustable output current, including whole-efficiency current and half-efficiency current.3. Decrease working efficiency when ... reverse, short circuit, Open circuit, 10. over current and over heat protection. Welcome to our site! If ...