I intend to replace an old and large population of T12 flourescent lights with T8 LEDs: direct wiring. The ballasts are $15 a piece (2 required per fixture) and it would seem that a 4 X $10 direct wire LED bulb is a better choice because of the labor to replace future ballasts is high.
That being said, I would like to understand what color is in the current population and would like the LED to match the population so that the phasing in of the LEDs is seamless.
Is there a clever (simple) method to assess the color?
I bought a contractor pack of T12 fluorescents (4100K): is this the 4100K the common standard for fluorescent lighting