TO those who properly understand the effect on industrial production of efficient lighting, it has come as no surprise that the Departmental Committee on lighting in factories has recommended a new standard of intensities. The fact remains, however, that many installations have been automatically rendered out‐of‐date. For this reason factory executives of works engaged on all manner of processes have to face the problem of modernizing their lighting schemes and are consequently seeking guidance on the accomplishment of this object in the most expeditious, efficient and economic manner.
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