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300W DC-DC Converter Step-down Buck Boost Power 20A Adjustable Charger DU55
Features:
Scope of application: high power LED constant current drive, battery charging (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, battery pack charging, solar panels, wind turbines
Input voltage: 6-40VDC
Output voltage:
continuously adjustable (1.2-35VDC) for longer than 32V (applicable for applications where the input voltage is higher than the output voltage cannot be boosted)
Output current: maximum 20A for 15A for a long time (power tube temperature exceeds 65 degrees, please add fan cooling, high voltage output, please derate)
Current limiting range: 0.2-20A (adjustment) module over 65 degrees, please add a fan.
The lowest voltage difference: 3V
Working frequency: 150KHZ
Conversion efficiency: up to about 96% Efficiency is related to pressure difference and usage environment
Output ripple: Ripple around 50mV (no noise) 20M bandwidth (for reference only) Input 24V measured
Working temperature: -10 to +75 Celsius) (Please pay attention to the power tube temperature for actual use. If the temperature is too high, please use heat dissipation or derating)
Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease)
Output short circuit protection: There is (instantaneous protection) constant current (current constant current value cannot be short-circuited for a long time)
Input reverse connection protection: none,
Output anti-reverse perfusion: None, for the load self-charged or inductive load requires an external diode,
Wiring method: terminal block
Module size: 60*53*30MM
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1 x Module
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We Ship to Worldwide (Except some countries and APO/FPO).
We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
Orders processed timely after the payment verification.
We will send the package from China via air post.
Delivery time depends on Shipping Carrier, Customs and Post Dispatch of destination and other factors.Most packages could be received in 20 business days (4 weeks). See below for delivery time collection of quantitative data:
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We accept Email requests for returns within 7 working days of receiving your order. If the item is in your possession more than 7 days, it is considered used and we will not issue you a refund or replacement.
If you are not satisfied when you receive the item, please return it within 7 days for a replacement or money back. Please contact us for a return guide before you return it.
All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your order ID.
If the item is defective in 3 months, We will send you a replacement without extra charge, or offer refund after we receive the defective item.
If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. But you need pay the extra shipping fee.
You agree to all of the above-listed policies upon ordering on aliexpress!
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If you are satisfied with our product and service, please give us a positive feedback with 5 star review which is very important for us. We will be very appreciate if you can leave your real feeling here.
If you are not satisfied with the items or our service, please contact us before leaving any feedbacks, we will resolve the issue immediately, thank you!
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Please Message us from
9:00am. to 18:00pm. (GMT+8) of Monday to Saturday.
If you have any questions, please message us and give us a chance to assist you. All messages will be answered within 1 business day (except Public holidays in China). If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible.
We apologize for the late reply during holidays (included Sundays).
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