Optimized performance: Powerful 7A current output effectively manages power, suitable for various RC models including aircraft and fixed-wing FPV systems. Small size, high-performance BEC buck module. Using MonolithicPower MP9447 chip. This is an integrated buck controller and switch MOSFET high-efficiency integrated switch buck chip. Maximum instantaneous output current of 7A, continuous output of 4A without heat dissipation, continuous output of 5A with heat dissipation. Multiple voltage output options, 5V, 6.2V, 7.4V, 9V optional. Input voltage: 7-26V, 2-6SLiPo (the input voltage must be higher than the set output voltage +0.8V, otherwise the output input voltage is the input voltage -0.8V) Output voltage: 5V, 6.2V, 7.4V, 9V optional (default output 5V, the other three voltages can be selected through the jumper pad) Output current (continuous): No heat dissipation (no heat sink, no wind): 5V4A, 6.2V4A, 7.4V4A, 9V3.5A With heat dissipation (with heat sink or wind): 5V5A, 6.2V5A, 7.4V5A, 9V4.5A Output current (momentary): 5V7A, 6.2V7A, 7.4V6.5A, 9V6A The product appearance and printed words may vary depending on the batch, but this does not affect use. Colour:Black Material:PCB Package Contents: 2 x Step-Down 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.