The below photos are taken for the prototype emergency light testing socket.
Prototype 1 (without Green LED and Test Switch) COB bottom of socket.
Old PCB board build and installation Prototype 1 (BG Socket)
Prototype 2 with Green LED and test Switch, COB on bottom edge.
Printed Circuit Board Design (SMD & Lead) Prototype 3/4
Prototype 3 with Green LED and test Switch, COB on top above switches (MK Socket)
Prototype 4 with Green LED and test Switch, COB on top above switches (BG Socket)
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GB2563290 - GB1709270.1 (11 June 2017) Paul Maxwell-King