DC 7-40V 12v to 1.2-35V 5v 24v Buck Converter LED Drive Constant Current Voltage, US $7.18 – Picture 0

DC 7-40V 12v to 1.2-35V 5v 24v Buck Converter LED Drive Constant Current Voltage, US $7.18 – Picture 1

DC 7-40V 12v to 1.2-35V 5v 24v Buck Converter LED Drive Constant Current Voltage, US $7.18 – Picture 2

DC 7-40V 12v to 1.2-35V 5v 24v Buck Converter LED Drive Constant Current Voltage, US $7.18 – Picture 3

DC 7-40V 12v to 1.2-35V 5v 24v Buck Converter LED Drive Constant Current Voltage, US $7.18 – Picture 4

Dc 7-40v 12v To 1.2-35v 5v 24v Buck Converter Led Drive Constant Current Voltage

US $7.18

Hong kong , Hong Kong
Jun 9th

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300W DC-DC 7-40V to 1.2-35V 5v 12v 19v 24v Buck Converter CC CV Charge Module Description: Features: Use a dedicated benchmark IC, and high-precision current sensing resistor, make more stable constant current, (when 20°C to 100°C constant current 1A, temperature drift less than 1%). Particularly suitable for LED driver. Fixed turn lamp current is 0.1 times the current value (When charging, used to identify whether the battery is fully charged); High output current, the max output current can reach 12A. Low output ripple , high frequency capacitor reduces output ripple. Module parameters: Module Properties: non-isolated step-down module, constant current and constant voltage module (CC CV), charging module Input voltage: 7-32V Output voltage: 0.8-28V (continuously adjustable) Output Current: 12A ( power tube temperature exceeds 65°C please add cooling fan ) Constant current range :0.2-12A ( adjustable ) Turn lamp current : constant current value * ( 0.1 ) , turn lamp current and constant current value linkage.For example, constant current value 3A, turn lamp current is set to 0.1 times constant current(0.1 * 3A = 0.3A). When adjust the constant current to 2A , then turn lamp current is 0.1 times constant current (0.1 * 2A = 0.2A). Turn lamp current is fixed to 0.1 time in this version( actually turn lamp current value is probably not very accurate ), it is for identify whether the battery is fully charged. Dropout voltage: 1V Output Power: Maximum power is about 300W, power tube temperature exceeds 65 degrees please add fan. Conversion efficiency : up to approximately 93% ( the higher output voltage, the higher the efficiency ) Output ripple : 20M bandwidth ( for reference only ) Input 24V Output 12V 5A ripple around 50mV ( excluding noise ) Operating temperature : Industrial grade (-40 °C to +85 °C) No-load current : Typical 20mA (24V step down to 12V) Load regulation : ± 1% ( constant voltage) Voltage regulation : ± 1% Constant accuracy and temperature: the actual test , the module temperature changes from 25 degrees to 60 degrees , the change of the constant current value is less than 5% ( constant current value 5A) Dynamic response speed : 5% 200uS Potentiometer adjustment: clockwise ( increase ) , counterclockwise ( decrease ). The potentiometer close to the input port is for voltage adjust (CV), the potentiometer close to the output port is for current adjust(CC). Indicator : double color indicator. When charging the indicator is RED, fully charged is GREEN( No load is green ). Output short circuit protection : Yes , constant current ( constant current value you set) Input Reverse Polarity Protection: None, Output prevent backflow : None. Wiring: Terminal Size:65(L)*47(W)*23.5(H) mm Some Applications: High-power LED constant current driver , Lithium battery(or Iron battery) charge, 6V, 12V, 14V, 24V battery charge , Nickel -cadmium nickel-metal hydride battery ( battery pack ) charge , Solar panels and wind turbines Battery charge: Make sure of the battery float voltage and charging current that you need, the input voltage of the module. Adjust the constant voltage potentiometer, adjust the output voltage to about 5V. Use the multimeter in 10A current scale to measure output short-circuit current,and adjust the current potentiometer to make sure the output current to the expected charging current value. Adjust the constant voltage potentiometer make the output voltage reaches the float voltage; Connected to the battery, try to charge. (1,2,3,4 steps to connect the power module input,output no-load does not connect battery.) LED constant current drive: Make sure operating current and Max operating Voltage of the LED you need to drive. Adjust the constant voltage potentiometer, adjust the output voltage to about 5V. Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected LED operating current. Adjust constant voltage potentiometer make the output voltage reach the maximum LED operating voltage. Connect LED, test. (1,2,3,4 steps to connect the power module input, output No-load does not connect LED.) Package Contents 100% Brand New 1 x 300W DC-DC 7-40V to 1.2-35V 5v 12v 19v 24v Buck Converter CC CV Charge Module We can also wholesale if you need a large quantity of item please contact us :) Shipping : We only accept your Paypal Address,Please Make sure it's 100% right. The items you ordered will be shipped out in 1 business day by Air Mail when your payment is clear. Delivery time depends on destination,logistics mode and other factors. If you have not received your shipment within 35 days from payment, please feel free to contact us. We will track the shipment and get back to you as soon as possible with a reply. Customer`s satisfaction is our goal. Country Delivery Time Working Days (not including holiday) 5-7 8-10 11-14 15-19 20-22 >25 Working Days + Saturday + Sunday 5-9 10-14 15-20 21-25 26-30 >35 United States Rate (item arrived) 9% 50% 21% 13% 7% Refund or Resend United Kingdom Rate (item arrived) 10% 62% 20% 3.5% 4.5% Refund or Resend Australia Rate (item arrived) 23% 50% 13% 8% 6% Refund or Resend France Rate (item arrived) 1.5% 20.5% 45% 23% 10% Refund or Resend Germany Rate (item arrived) 5.5% 25% 35% 19% 15.5% Refund or Resend Canada Rate (item arrived) 0.0% 44% 35% 18% 3% Refund or Resend Spain Rate (item arrived) 1.5% 25% 50% 14% 9.5% Refund or Resend Payment : We accept PayPal only. We only ship to confirmed PAYPAL addresses.Please makesure payment address in PayPal is correct. All major credit cards are accepted through our secure payment processor PayPal. Payment must be received within 7 business days of auction closing. Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.We will try our best to solve any problem. If you have any questions, please feel free to contact us by ebay message. We will reply you within 48 Hours. Refund&Reship: 60 days money back return policy. If you are not satisfied when you?receive your item, please return it within 60 days for a replacement or money back. Please contact us for return address before you send it back. If item defective, 1. in 3 months : we will send you a replacement without extra charge, or offer refund upon faulty received. 2.after 3 months you are still welcomed to send it back to us for exchange. Buyer may responsible for all return shipping costs. In case you receive wrong products due to shipping error, please contact us for exchange or refund. If it's damaged , please refuse to accept and contact us as soon as possible. Communication : Please email us before leaving any negative feedback or open any dispute on PayPal. We care about our valued customers, and will always try to help you. So if you have any problems, please e-mail us immediately. We try our best to reply to your emails as soon as possible. If you do not receive any reply from us, please check your email ensuring your mailbox has not reached full size. You can contact us by Ebay messages are strongly recommended. Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items. On Aug-25-15 at 16:26:43 PDT, seller added the following information:

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	UNbrandes
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