1) Module parameters: <br><br>- Properties: non-isolated step-down constant current? constant voltage module (CC CV) charging module <br><br>- Scope: High-power constant current LED driver? battery charger (including ferroelectric)? 4V? 6V? 12V? 14V? 24V battery charging? nickel-cadmium nickel-metal hydride batteries (battery) charger? solar panels? wind turbines <br><br>- Input voltage: 7-35V? <br><br>- Output voltage: 1.25-30V adjustable <br><br>- Output Current: Max3A (more than 15W? please install heat sink? this item do not include HEAT SINK) <br><br>- Constant current range :0-3A (adjustable) <br><br>- Revolving light current: constant current value * (0.1)? <br><br>- Such as the constant current value is 3A? revolving light current is set to constant current of 0.1 times (0.1 * 3A = 0.3A)? when adjusted constant current value to 2A? then revolving light current is constant current of 0.1 times (0.1 * 2A = 0.2A). this version is 0.1 times fixed <br><br>2) Feature: <br><br>- Dropout voltage: 2V <br><br>- Output power: natural cooling 15W? 25W with heat sink <br><br>- Conversion efficiency: 90% (up to 90% (the higher the output voltage? the higher the efficiency) <br><br>- Output ripple: 20M bandwidth (for reference) <br><br>- Input 12V Output 5V 3A 60mV (MAX) <br><br>- Operating Temperature: Industrial (-40 ? to +85 ?) (ambient temperature exceeds 40 ?? lower power use? or to enhance heat dissipation) <br><br>- Full load temperature rise: 45 ? <br><br>- No-load current: Typical 10mA (12V switch 4.2V) <br><br>- Load regulation: ± 1% <br><br>- Voltage regulation: ± 0.5% <br><br>- Constant accuracy and temperature: the actual test? the module temperature changes from 20 ? to 100 ?? less than 1% change constant current value (constant current value 1A) <br><br>- Dynamic response speed: 5% 200uS <br><br>- Potentiometer adjustment direction: clockwise (increase)? counterclockwise (decrease)? <br><br>- Potentiometer close to the input is Voltage regulation (CV)? <br><br>- Potentiometer close to the output is current regulate (CC)? <br><br>- Indicator: two-color LED charging indicator light red? fully charged light green (do not connect load light green) <br><br>- Output short circuit protection: Yes? constant current (constant current setting values) <br><br>- Input reverse polarity protection: Yes? <br><br>- Output to prevent reflux: Yes? the output has an internal series a diode to prevent reflux. <br><br>- Connection: Welding? plus pin can be directly soldered to a PCB <div class="params_begin">Specification:</div><div class="params_group"><table border="0" class="params_group_table">  <tr>	<td class="params_group_name">			Package Weight		</td>	<td class="params_props">			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">One Package Weight</td>			<td class="params_value">				0.04kgs / 0.09lb			</td>					</tr>		  </table>		</div>			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Qty per Carton</td>			<td class="params_value">				350			</td>					</tr>		  </table>		</div>			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Carton Weight</td>			<td class="params_value">				10.60kgs / 23.37lb			</td>					</tr>		  </table>		</div>			<div class="params_prop last_prop">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Carton Size</td>			<td class="params_value">				36cm * 32cm * 36cm / 14.17inch * 12.6inch * 14.17inch			</td>					</tr>		  </table>		</div>		</td>  </tr></table></div><div class="params_end"></div> <p>&nbsp;<img src="https://lh3.googleusercontent.com/-oYp3-Nj18a0/Vzl4ATG8byI/AAAAAAAAiB0/flsa52IW_io-CXISwM-o_wO6Gth2NbbmgCCo/s829/sg%2Bback.jpg" alt="" /></p>