Welcome to the store! 1. Because the module design does not require a common ground at the beginning, it is not possible to add a diode on the card tube and the output capacitor to prevent damage caused by transient overvoltage, so the user When using, there may be instantaneous high-voltage pulses, or the operating voltage is close to 35V, it is recommended to add diodes and the output capacitor to protect the module. 2. The voltage drop of the module is about 0.3V when the module is unloaded or the load current is extremely small. When the load current is greater than 10ma (12V voltage test), the voltage drop will decrease significantly and is related to the current that is small related. 3. Because the module does not need to be grounded, it is superior to modules that need to be grounded. Operating Voltage: 1.5V-36V Working Current: 12V 25℃ without cooling measures less than equal to 15A (15A long-distance test for 30 minutes) 12V 25℃ heatsink + air cooling less than equal to 30A (30A long-distance test for 30 minutes) If the theoretical heat dissipation is good, it can be over 50A, but the heat dissipation ratio is limited to over 30A No long-distance test Static Current: 0ma (no load condition, there will still be current when the load is in standby) Positioning Method: welding fixed Different batches may have different appearances, but do not affect normal use. Color: Silver Material: Metal Package Contents: 10 * Diode Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!