Output power: 3. 5W (eficiency is about 80%). Test resistance: 7 Q (4.9V) for 5V. Output current: Min.0mA, Max.700mA. 2.No-load power: <0.05W (full load power: <4W). 1 PCS Step Down Module. Output current: 5V0mA-700mA,(enter constant current mode when fuшll 1oad.).
eBay