Valaisin

Valaisin is a device designed to provide artificial illumination by converting electrical energy into light. In common usage, it refers to a luminaire or lamp and can be portable or fixed. A valaisin typically consists of a light source, a housing, electrical connections, and often a diffuser or reflector. The term contrasts with the light source itself (lamppu) and with lighting design.

Types of valaisin are commonly categorized by mounting and location: lattiavalaisin (floor lamp), pöytävalaisin (table lamp), seinävalaisin (wall light), kattovalaisin (ceiling light), riippuvalaisin (pendant), and kiskovalaisin (track lighting). Outdoor variants include ulkovalaisin. Some fixtures deliver directional light for task lighting, others diffuse light for ambience.

Technology and design trends: Modern valaisins primarily use LED light sources for efficiency and longevity, though halogen and compact fluorescent options exist. Many offer dimming and adjustable color temperature. Key specifications include luminous flux (lumens), color temperature (Kelvin), and color rendering index (CRI). Energy efficiency classifications and safety standards apply, with compliance often required for electrical products sold in Finland and the EU.

Installation and maintenance: Fixed valaisins should be installed according to electrical codes, typically by a qualified electrician. Portable lamps are user-serviceable but must be used with proper plugs and cords and without overheating. Regular cleaning helps maintain light quality and safety, and LEDs generally require minimal maintenance.

End of life: Valaisins are subject to local disposal regulations for electrical waste and may be recycled for components and materials.