CCT

CCT is an acronym used in multiple fields, and its meaning depends on the context. Common uses include lighting terminology, medical transport services, and professional certifications.

Correlated Color Temperature (CCT) describes the color appearance of a light source, expressed in kelvin (K). Lower CCT values (around 2700–3000 K) appear warm, with yellowish tones, while higher values (5000–6500 K) appear cool or daylight-like. CCT is distinct from brightness (luminous flux) and color rendering; it helps design lighting for ambiance, productivity, and safety. LED producers label lighting products with a CCT figure to indicate warmth or coolness.

Critical Care Transport (CCT) refers to medical transport services that care for patients with life-threatening conditions or requiring advanced monitoring and intervention during transit. These services use specialized ambulances or aircraft and typically employ personnel such as critical care nurses and paramedics or physicians. CCT aims to stabilize patients, manage complications, and coordinate hand-offs with hospital teams.

Certified Cost Technician (CCT) is a professional credential in cost management and estimation, offered by professional bodies such as AACE International. It certifies foundational knowledge in cost terminology, data collection, and basic estimating techniques. The designation is often pursued as an entry point before more advanced certifications such as Certified Cost Professional. Requirements typically include a combination of coursework, experience, and examinations.