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Just a dumb question :)

In the last two days I have replaced 8 x 4 lamp T8 ballasts in two different locations.
Someone who replaced them last wired them wrong in my opinion.

A standard 4 lamp ballast has 2 yellow, 2 blue, and 2 red wires. 2 blue to one yellow and 2 red to one yellow.

The ones that were previously wired by someone else was either someone new or someone lazy and did not check how the sockets were wired.

They had the lamps wired 1 red and 1 blue to one yellow for each set of lamps.

I am assuming that this will greatly shorten the life of the ballast?

Anyone have any insight on these? Does it really make a difference?

I am assuming it does, which is why I have always taken the time to test each socket for each set of wires, especially in the HO signs where you can have around 14 wires.
what's the voltage of the lights and what's the power source?
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