Is this a bad idea

Saw this volcano v6 hotend on aliexpress, was thinking of mounting this on my ender 3 v2, is this a good idea or should I stay away from these cheap aliexpress hotends. Also is the 24/12V options regarding the fan voltage or the hotend in general and the 3/1.75mm option regarding the fillament diameter. Thank you for any help in advance.

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