Sunnysky ESC. X40A 2-4s Lipo BEC:3A 5v Sale! from 2853 /per Qty. Add to Cart Sunnysky 40A ESC as used in the BIGHORN, Super Decathlon, Challenger and more Specs 40A:Size: Approx. 47x28x14mmWeight: Approx. 44gWorking current: 40ABEC: 5v @ 3AApplicable battery type: 2 - 4 Li-Po, Qty available:40 SKU:SSKY-ESC-X40