High Quality Material: The Brushless controller with exquisite metal material, waterproof and advantages for stable operation, serve you remarkable DIY toy experience. Wide Range : All waterproof ESC could for the 1:8 scale RC : crawler/off-road, 120A for 4S or 12 cells NiMH, on-road: 40XX-size or smaller motor with the KV Less than 3000, on-road:42XX-size or smaller motor with the KV Less than 3000, Motor Type with the KV Less than 2500; Off-road:40XX-size or smaller motor with the KV Less than 2500, 42XX-size or smaller motor; 150A for 6S or 18 cells NiMH, On-road:40XX-size or smaller motor with the KV Less than 2500 Main Technical Specification: BEC output approx 5.8V-6.1V/3A, meet to the requirements of RC . Waterproof Spare Part: The waterproof design make the stable to control your motor even on the road without break , the durable receiver and switch wire flexibility performance, replace and extend the RC toy a brand service cycle. Easy to Assemble: The ESC is easy to assemble, make all the wire to with the right devices of your RC car, durable and energy-saving, which is also stable and lasting the motor performance, we'd like to offer instructions if any further requirement. Type :150A Product Dimension: approx. 6 x 5 x 3.8cm/2.36 x 1.96 x 1.49 inch BEC Output: 5.8V-6.1V/3A Voltage: 4S-6S /12-18 cells NiMH Colour:as shown Material:Metal Package Contents: 1 x Brushless ESC Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.