Beam angle

The beam angle, also called half -value angle, specifies the angle in which light escapes from a lamp, which creates a cone of light. A small beam angle (e.g. 38 °) creates a narrow cone for targeted lighting, while a large angle (e.g. 120 °) enables flat light. Ray angles are measured in degrees (°) and are often specified in the article description. For light, homogeneous light in rooms such as kitchen or bathroom, beam angles from 90 °, better 120 °.

Orientation aid:

• 10 °: targeted object lighting (painting/sculptures)
• 30–60 °: accent lighting (built -in spots)
• 90 °: narrow rooms (corridors)
• 120 °+: flat lighting (LED panels)
• 360 °: all -round light (e.g. light bulbs)

The beam angle defines the area with at least 50 % light power, while the outer, weaker -illuminated area is referred to as field angles.