It is available in either 300mm length or 675mm length

It is surface mounted and the wires can exit from the bottom or end of fixture

42230 has required ventilation in the lid

only requiring two screws for fastening

on some boats this is not really feasible

Vetus P13093 - 3500 HWC Port Drum STR CHW 12V Cr Plumb It is available in eitherThe HWC Series is designed for automatic horizontal handling of chain only anchor rodes while offering an independent capstan for the retrieval of a secondary rope and chain rode or to assist with docking procedures. Features and benefitsFully automatic single or dual direction chainwheel operation, for use with chain only rodes Functional rope hauling from fore and aft using independent fluted stainless steel snag free warping drum with clutch