All orders are shipped from China.
We usually process and prepare your order within 1–3 business days after payment is received. Shipments are handled by Yanwen Express for international delivery. Once the package arrives in your country, it will be transferred to a local courier for the final delivery. The average shipping time is 8–12 days, depending on your location and local customs processing.

At the moment, we only support PayPal as our payment method.

All electronic components come with a 1-year warranty from the date of purchase.
Please note that improper use, physical damage, or self-inflicted issues are not covered under the warranty.

To request a warranty service, please provide your order invoice and a photo or video clearly showing the defective part.

• LED 1 & 2 flashing: Heating element open circuit

• LED 2 & 3 flashing: Probe short circuit

• LED 3 & 4 flashing: Probe open circuit

• LED 1 & 5 flashing: Balance line open circuit

• LED 1, 2 & 3 flashing: One battery cell voltage below 2.5V

• LED 3, 4 & 5 flashing: One battery cell voltage drops below 2.5V during operation

• LED flashes 6 times: Low battery

• Reverse battery protection: Device will not operate if the battery is installed incorrectly

• LED flashes in a loop: High temperature alarm — alarm clears when the device cools down to a safe 65°C

• Overcharge protection: Device will automatically shut down and stop charging if battery voltage exceeds 8.4V or a single cell exceeds 4.25V

No, all orders include free shipping.

To help avoid high customs duties, the declared value of each package will be set at USD 30.
If you require a specific declared value, please contact us after placing your order.

If you’re interested in wholesale purchases, please contact us at wholesale@yllvape.com

We currently do not offer group buys. This policy helps us maintain fair pricing and availability for all our retailers and individual customers.