Looking to drive a 7 segment display with 12v input, but do not want a relay unit.
The code is being driven by an external python script that is pushing in the time (seconds).
I do not want to use the clock on the ardrino, as i need the python script to record and reset the values.
but i need to use 12v LED strips, and currently using a 8 relay unit module.
ideally want the PIN out to be driving the 12V supply.
Any recommendations on hardware and diagrams.
Please post the datasheet.
Often datasheet provides application notes that could tell.
What parts do you have exactly?
I think you can get 12V compatible LED strips with WS2811.
I currently have 12v led strips 10cm lengths to make the 7 segment display. But it is the power driver i need to get and understand, as currently using a 12v relay circuit. And switching of the segments works fine, just do not think it is the most effective way.
Can you post a link to the 12v LED strips? That is an unusual item.
It might be possible to use a TPIC6B595 shift register, that will handle up to 50V at 150mA per output.
I would say very common!
It definitely is possible, I have done it. 
It's also easy to dim the whole display by connecting an Arduino PWM output to the EN pins of the TPIC chips.
I think you may want to read this thread talking about the ULN2003
As the ULN2003 is a bit of an ancient part (that still works well btw), there is a more modern substitute using NMOS transistors the TPL7407L
Post a schematic of what works now with the relays.
Seems like all you needa do is replace the relays with MOSFET drivers, please see
Your schematic and code, posted here, will answer the questions and help us make sense of your sitch.
a7
I think i am failing to understand how the MOSFET driver works, and the components needed.
What parts(s) of the information at the link I posted above are you having trouble with?
It isn't simple and doesn't get simple! But that site is complete and accurate and shows what you have to do.
Without your code and a schematic there's no other advice I can offer.
I add that you can use MOSFET modules that have not only the MOSFET but some variation of the circuits that Nick Gammon describes.
a7