1. Since module design does not require a common ground at beginning, it is not possible to add a diode on board tube, and output capacitor to prevent damage caused by transient overvoltage, so user When in use, there may be instantaneous high-voltage pulses, or use voltage is close to In case of 35V, it is recommended to add diodes and output capacitor protects module. 2. The voltage drop of module is about 0.3V when module is unloaded or load current is extremely small. When load current When it is 10ma (12V voltage test), the voltage drop drop significantly and is related to current small related. 3. Since module does not need to be grounded, it is superior to modules that need to be grounded.<br><br>Operating voltage:1.5V-36V Working current: 12V 25℃ without cooling measures less than equal 15A (15A long-distance running test for 30 minutes) 12V 25℃ heat sink + air cooling less than equal 30A (30A long-distance running test for 30 minutes) If theoretical heat dissipation is good, it can be above 50A, but heat dissipation condition is limited to above 30A No long-distance running test Static current: 0ma (no load state, there still be current when load is in sleep state) Positioning method: welding fixed Different batches may have different appearances, but not affect normal use. Colour:Silver Material:Metal<br><br>Package Contents: 10 * Diode Module<br><br>Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.