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HOPEFUL
WIND ENERGY TECHNOLOGY
Hopeful Wind Energy Technology Co., Ltd.
Congratulations on your purchase and welcome to our family!
Dear Airforce 4.1 Owner,
Thank you for your purchase of Airforce 4.1. You have just selected the most cost-effective, technologically advanced
renewable energy appliance available for a home or small business. We congratulate you on your choice and are confident you
will experience years of dependable service.
Before going any further, please complete and return the enclosed Warranty Registration Card , or register online via
www.hopefulenergy.com . The conditions of your warranty are dependent upon the proper installation of Airforce 4.1.
Furthermore, this will assure you of being kept up-to-date with the latest developments from Hopeful Wind Energy. These
include new options, performance tips, updated software to maximize output and user notices. It is important to know that we
do not sell or distribute your information to any third party. We understand your privacy is important. Please call during working
hours (Monday-Friday 8:30 am to 5:00 pm – Beijing time). Our phone number is +86 756-3819866 or 3819868 , or you can
contact us by info@hopefulenergy . com .
Again, welcome to our family and thank you for investing in the future of wind energy with Airforce 4.1.
Sincerely,
Hopeful Wind Energy Technology Co., Ltd.