For places where the 24V version can be used, basically 12V waterproof LED strip light can also be used. But the reverse is different. In some places, only 12V strips version can be used, such as on cars, RVs, and boats, because the power supply system is 12V.
Compared with 12V strip light, 24V version is better for longer run installation, because its voltage drop is smaller than 12V strip. In addition, 24V version draws less current than 12V, which makes the 24V version better for a large-scale installation.
By the way, where indoor versions can be used, waterproof LED strips can generally also be used, and provide protection from dust, particles, incident impact, and other harmful factors.