This set of 3 boards will replace the metal panels that have 9 555 sockets on each board.
When you put your own lamps in the board, you can use either LED or incandescent type.
And of course, to change a lamp you no longer have to unscrew the panel to change one lamp.
The board set comes with standoffs and hardware.
Installing it involves unsoldering and resoldering each wire one at a time.
If you need the twist sockets, they are also available on this web site.
A printout is included that has lamp numbers and wire colors listed to make it easier to wire up.