For example a beam angle on 30 degrees means the light has a shape of a cone and its borders form a 15 degree angle with the center axis. For example, a 1 candela light source will product 1 lumen per square meter at the distance of 1 meter.īeam Angle: The beam angle is the angle of radiation for a light source.
Luminous Flux (Lm): The luminous flux is a measure of the total light output from a source. The light intensity drops exponentially the further away you get from the source (distance). Illuminance (lux): Illuminance is a measurement of the light intensity at any point. Enter the distance and beam angle, then either enter a Lumens value and click 'Convert to Lux' or a Lux value and click 'Convert to Lumens'. Here you can convert a lumens value from a product to a lux value if you know the beam angle and measurement distance. If you require a different room type, please contact us. Room Type: Supplied are a small list of typical room types and their recommended illuminance levels. Notes: Lux: Lux (Illuminance) is a measurement of the light intensity at any point. Enter the room size, select the type and choose a light. Here you can calculate the number of lights required in a room based on the type and size of room.
If you need help working out something we don’t have a calculator for, contact us. Use these calculators to work out what you need, before you buy.
