1.Quality assurance: The products will be tested on site before sending, and only the products with no problems will be sent to you. 2 .After installation, if not working, please contact us as soon as possible, and our engineers will help you solve the problem. 3. Service guarantee: You can consult us at any time if you have any needs, we serve you 24 hours with the most sincere heart. 4. .Your 5 star feedback is our motivation, looking forward to good feedback!Thank you very much! 5. .Our electrical parts voltage is 220 V, if your country voltage is different, please contact us 6.If the buyer cannot find the same product, they can send us pictures of the product and model, and we will serve you. 7.Dear buyer, thank you for your payment.We will try our best to send out the package as soon as possible.Wish you a good day. 8.Friends, welcome, if you have any questions about the product, or if you want to order in large quantities, you can contact me and I will give you the best price： Email: 17378260182@163.com WhatsApp +86 19015815295