Shader properties - float or vector?

Im am working on a shader and I have a property that I want to only have xyz values in it. Currently it is coded as a vector.

_L0Pos ("Point 0 Position", vector) = (-0.5, 2.0, 1.25)

Is this syntax correct and/or is there a better way to code this? Example:

_L0Pos ("Point 0 Position", float3) = (-0.5, 2.0, 1.25)