Can I swap one brand of tube for another?

Yes, you can swap one brand of tube for another but you will need to make some considerations if they are a different type of technology to each other (fluorescent to LED for example) and you will need to make sure it is compatible with your lighting fixture.  

Key Considerations for Swapping Light Tubes

The single most important factor is ensuring the replacement tube is compatible with the fitting you are looking to put it into.  You will need to make sure it is the same diameter; same length and that it is compatible with your control gear (which will be within the fitting).  You will also need to make sure that you are not using a blacklight tube instead of a standard tube for an under cabinet light for example.

In Summary

If you are replacing a standard fluorescent tube with another standard fluorescent tube of the same specifications then yes, you can swap brands easily.  Always check they are the same length; fitting and diameter.

If you are swapping your fluorescent tube for a newer LED tube, you will need to check if your fixture needs to be rewired (Ballast-Bypass) or if the new LED tube is certified to work with your existing ballast (Plug-and-Play).  Led tubes should come with a ballast compatibility sheet if they are Ballast-Bypass or this will be available on the manufacturer’s website.  Otherwise if they are the Plug and Play type they will be labelled as Retrofit being they should connect easily to your lighting fixture.