Fasizi XL6009 DC Adjustable 4A Step up Module, 3 30V Input to 5 35V Output Voltage Boost Converter Board, 400KHz Frequency, 5pcs

XL6009 DC-DC Adjustable step-up power converter module, the step-up circuit board is a good efficiency non-isolated boost module Input: DC 3 V to 30 V, optimum operating voltage range: 5V to 30V; Output: DC 5 V to 35 V voltage is continuously adjustable, maximum output current is 4 A Step-up boost converter module: they can fix on the emergency lamp or other electronic devices between the corresponding voltage range, DIY an output adjustable mobile power, boost charger, etc. This is a good-performance 400KHz 4A switch currency step-up boost module; Warning: this is only for the increasing output voltage; The input voltage should not be over 30 V to avoid any possible damage