health and safety rules regarding lights in a workplace?

The health and safety laws depend on which country you are in, and the type of workplace eg factory, or office, or operating theatre - all would have different minimum requirements.

allows people to notice hazards and assess risks;

is suitable for the environment and the type of work (for example, it is not located against surfaces or materials that may be flammable);

provides sufficient light (illuminance on the task);

allows people to see properly and discriminate between colours to promote safety;

does not cause glare, flicker or stroboscopic effects;

avoids the effects of veiling reflections;

does not result in excessive differences in illuminance within an area or between adjacent areas;

is suitable to meet the special needs of individuals;

does not pose a health and safety risk itself;

is suitably positioned so it may be properly maintained or replaced, and disposed of to ensure safety; and

includes, when necessary, suitable and safe emergency lighting.

Try actually asking local educated adults for real answers in ur country