Generally speaking, the length of the vanity wall light is recommended to be no more than 1/3 of the dressing table. Specifically, for a 72-inch dressing table, a wall light with a length between 24 and 36 inches (about 61 to 91 cm) can be selected.

When making the final decision, users should consider their specific needs. If it is mainly used for daily makeup, warm light may be more suitable; if fine eye makeup and eyebrow shaping are required, cool light may better meet the needs. Environmental factors will also influence the choice.

For a standard dressing table, it is recommended to install two wall lamps on both sides of the mirror, usually between 24 inches (about 61 cm) and 36 inches (about 91 cm). This spacing usually ensures that the light is evenly irradiated to the face, avoids local shadow problems, and ensures the comfort of the lighting effect.