4A 35W Parameter --- Buck boost converter, input voltage range 5.5-30V; output voltage range 0.5-30V; working current 4A; power 35W.
4A 60W Parameter --- Input voltage: DC 6-30V; Output voltage: DC 0.5-30V; Output current: 4A (max), adjustable, recommended to use within 3A; Output power: 60W (max), recommended to use within 50W.
Application --- As a normal boost buck converter module with over-current protection; as a battery charger; as a high-power LED constant current driver module, etc.
NOTE --- The case is packaged disassembly to avoid damage during transit. It needs to be manually installed.