WarmSuns Outdoor Snow Sprite remains effective even in extremely harsh -40°F weather! Even in weather as cold as -40°F, WarmSuns Outdoor Snow Sprite, upon first contact with ice and snow, will initially lower the melting point, causing the ice and snow to melt into water. Subsequently, it adheres to the wood and ground, continuously generating low heat for 15 days. The ice and snow will continue to melt for a duration of 15 days. The key to this effect lies in the purely organic ingredients of WarmSuns Outdoor Snow Sprite! WarmSuns Outdoor Snow Sprite is made using pure natural plant extracts, sea salt, and urea using microwave-assisted extraction. This technology not only has the function of preserving the performance of ingredients but also promotes the release of components using microwave energy. It has obtained EPA certification and USDA organic certification, making it environmentally friendly. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.