Logos For Emergency Lights, Sirens, etc

Hi,
I am trying to make branding logos for different products my company makes and sell. They sell emergency lights, sirens, things like that.

I need to make a logo that is engraved on the product itself, so no colors, patterns, shapes, etc. I am attaching a picture of where the logo would be engraved, right next to the serial numbers.
So we’re not talking creative, just very professional looking…

There is the name of the brands and then a number for each product type. For example, there is the Unity light bars (that you would see on a police car) and then there are different sizes, which make Unity24 or Unity65, etc.

I am also attaching the brand that I made that my boss liked and used, but I have a lot more brands to make and I’m not sure whether they should all look the same or how to make all different ones that look clean and professional.

I don’t know if anyone else works with this kind of thing, but I would appreciate any help with this!


should I do this for all of them?

i like how u did it with the solid fill and then transparent for the digits… seems to work well… u can see what your client thinks. also maybe use a photoshop mockup of engraved text on metal to get a good preview for you and your client