for this B1 battery pack we have 2 output

out 1 is 5v and output 2 is 12v.its suaitable with any cimilre brand or any pump that using

5v or 12v 

3 Months warranty 

Return & exchange are allowed only for items with manufacturing defect. The following guidelines apply:

1. Retailers have to check to confirm that there is manufacturing defect on the item

2. Notify us via email at info@gmta.asia of such defect.

3. We will get in touch with you once we receive your email of such defect and will guide you on the next course of action.

4. For electrical items, you will need to send it back to us for testing at your own cost. After testing, if it is confirmed that the item is defective and cannot be repaired, we will send a new replacement to you. If item is tested and no fault can be detected, we will return the item back to you. You can also request that the customer contact us directly if the item is still under the warranty period.