Notice: Under the premise of normal cooling, it work stable under I(Max)=25A, the current must not exceed 25A while the process working Description: Net Weight: 25g Size: 6 x 5 x 3.1cm / 2.36 x 1.97 x 1.22" Mounting holes: 3.2mm diameter, for M3 screws. If you intend to use heated bed with your 3D printer that uses a 12V power supply, then this module is recommended, else it may cause excessive current during times which may burn the connectors on the controller board. If you need anything greater or equal to 15A this module is a must! For example, if your total power usage is 240W and you have 12V power supply, then it means at least 20A is needed (20X12=240W). As ChiTu controller board is only capable of 15A this setting will not work. To make it work, you need this extra power module. Package Contents: 2*Heat Bed Power Module
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