PRODUCT DESCRIPTION WHAT'S IN THE BOX SPECS Bluetti PV VOLTAGE STEP DOWN MODULE (D300S) Applicable Models: AC300/EP500/EP500Pro D300S created to allow your EP500/Pro, AC300 to have a chance to connect with Roof/Rigid panels for 2400W Max. Solar charging, especially users who already have installed rigid solar panels and PV grid-connected inverters, and the solar panel array's total open-circuit voltage exceeds the EP500/Pro, AC300 input limit (140V/150V), D300S will be perfect to adjust the total voltage and match the input requirements of EP500/Pro, AC300.Main features:* Step down the voltage of rigid panels to 120V from 550V* Support 3000W Max input* 3000W Max output* IP54 1x D300S PV Drop Down Module1x DC Output Cable (Aviation to MC4*2) 1x User Manual1x Warranty Card1x Certificate of QC Pass DC OutputPower of Output:3000WVoltage:65V to 135VCurrent:Up to 26AShort Circuit Protection:SupportedPV InputPower of Input:3000WMPPT Voltage:120V to 500VCurrent:Up to 15ADual MPPT:SupportedInternal Over-Heated:85°CRadiator Over-Heated:95°CShort Circuit Protection:SupportedMax Efficiency:97.8%Output Over-Voltage Protection:>140VDCAmbient Temp:-10°C to 40°CStorage Temp:-20°C to 40°CAltitude:< 2000mProtection Level:IP54Dimensions:350*216*120mm/13.7*8.5*4.7inNet Weight:7KG/15.4lb