Daylight in Secure Environments

Introduction: Daylight Regulations in Custodial Cells

Access to natural daylight is increasingly recognised as a fundamental component of humane detention conditions. In many countries, prison design and operation are governed by national laws and international human rights standards that mandate a minimum level of daylight exposure in cells. These regulations aim to promote the physical and psychological well-being of inmates, reduce stress and depression, and support a more rehabilitative environment. Ensuring sufficient daylight is not only a matter of inmate welfare, but also a legal requirement under various penal codes and architectural guidelines, including recommendations from the United Nations and the European Committee for the Prevention of Torture (CPT). As a result, modern prison facilities are expected to incorporate architectural solutions that guarantee consistent and adequate access to natural light throughout the day.

Daylight Solutions for Secure Environments

At Techcomlight, we specialise in bringing natural daylight into even the most secure and challenging environments. Our Powerdaylight systems are designed to meet the strict requirements of high-security facilities without compromising safety, durability, or performance.

Natural Light Without Compromise

Facilities such as detention centres, forensic psychiatric institutions, police stations, and high-security government buildings face unique challenges. Windows are often not an option, yet the benefits of daylight — for health, well-being, and energy efficiency — are undeniable.

Techcomlight’s daylight tubes offer a safe and effective way to bring daylight into interior spaces, while maintaining the integrity of secure structures.

Access to natural light in police detention facilities is a fundamental human right recognised by international standards.

The United Nations Standard Minimum Rules for the Treatment of Prisoners (the "Nelson Mandela Rules") emphasise that all detainees should have access to natural light during the day and adequate artificial lighting at night to read or work without harming their eyesight. Similarly, the European Committee for the Prevention of Torture (CPT) underscores the importance of sufficient natural light in detention settings, noting that inadequate lighting can adversely affect detainees' mental health and well-being. These guidelines reflect a global consensus on the necessity of humane conditions in detention, including proper lighting, to uphold the dignity and rights of individuals deprived of their liberty.