2-6S Lipo 20A Spider OPTO ESC Speed Controllers for RC Multi-Rotor MultiCopter Aircraft Drone

Features:

High quality speed controllers designed specifically for multi-rotor aircraft.
Feature up to 600Hz refresh rates for an incredibly smooth yet crisp flight controller response.
These ESCs also feature excellent throttle linearity without sacrificing a rapid, crisp response to throttle input.
Extremely low internal resistance
Super smooth and accurate throttle linearity
Safety thermal over-load protection
Auto throttle shut down in signal lose situation
Supports high RPM motors
Power arming protection (prevents the motor from accidentally running when switched ON)

Specifications:
Output: 20A continuous, 30A burst
Max power: 500W
Input Voltage: 2-6s lipo
BEC Output: OPTO (NO BEC)

 Package Includes:

1 X 20A ESC

1)Payment
We accept T/T, Western Union, Escrow and cash as payment method.
Cash payment is only available for the customers those can come to our office or store.
We request 100% prepayment before we ship. If your order is too big and our cargo cannot be ready within 7 business days, we request 30% deposit; the other 70% should be paid after the cargo was ready.
We never accept COD term and partial payment, no matter how big your order is. Please understand this.

2)Quality Check and Warranty
We check our products one by one before we pack and ship to make sure they are all what you ordered, to make sure the quantity and in good condition.
We provide 3 moths international warranty. You can get free exchange or repairing service within this period since you paid. We are responsible for all the charges and fees caused by exchange or repairing service.

3)Packaging
We usually pack our products by normal plastic bags or bubble bags and use cartons as outer packaging. We always choose the best and safe packaging material to make sure your orders won’t be damaged during delivery.

4)Shipping
Usually we use traceable international Express service to ship. We ship within 3 business days after your payment was cleared. If your order is too big and our cargo cannot be ready within 7 business days, our shipping time should be longer.
We accept drop shipping and domestic pickup

5)Return and exchange
We provide 20 days unconditional return and exchange service; you pay all the charges and fees caused by return and exchange