YK31C 800W DC 48V brush motor electric tricycle controller , speed control,electric bicycle controller our belief is service ,foremost quality first ,credit first. 1.pictures of product Attention:as different computer display cplors differertly,the colors of the actual items may vary slightly from the above images ,tnanks for your understangding . Feature: 1)Model:YK31C 2)Rated voltage: 48V 3)Rated power: 800W 4)Under-voltage protection: 31.5 ± 0.5V 6)Applicable model: electric bicycles, electric tricycle 2.Shipment information a.Almost all goods (usually under 2kg) are free shipping by China Post/HK post b.Any ask for fast delivery like DHL, EMS, FEDEX, please Contact US c.Allgoods are well-packed with standard package, Any Goods Sent Will have a TRACKING NO. d.Note if your order weight is over3KG, we will send you by DHL,more fast and will be with an extra charge. 3.About PAYMENT a.Payment is usually confirmed within 24 hours by Ali express b.we also accept by westernunion. 4.About POLICY a.All our buyers would leave a good judgement after receiving goods since your satisfaction is our best gain b.If you are not satisfied with our goods, we would refund you under no condition c.All items will be strictly tested before shipping! 5.WORKSHOP 6.Employee training 
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