Daylighting
Our mission at Bristolite is to provide our customers with the highest quality products and supreme service at an exceptional value. We also aim to provide the industry with an abundance of accurate and useful information relative to daylighting and energy conservation. We take our corporate responsibility to our employees, associates, industry colleagues and customers very seriously and we see ourselves as stewards for the efficient use of sustainable carbon free energy.

Recommended Light levels by Task

ACTIVITY

CATEGORY

LUX

FOOTCANDLES

Public spaces with dark surroundings

A

20-30-50 

2-3-5

Simple orientation for short temporary visits

B

50-75-100

5-7.5-10

Working spaces where visual tasks are only occasionally performed

C

100-150-200

10-15-20

Performance of visual tasks of high contrast or large size

D

200-300-500

20-30-50

Performance of visual tasks of medium contrast or small size

E

500-750-1000

50-75-100

Performance of visual tasks of low contrast or very small size

F

1000-1500-2000

100-150-200

Performance of visual tasks of low contrast or very small size over a prolonged period

G

2000-3000-5000

200-300-500

Performance of very prolonged and exacting visual tasks

H

5000-7500-10000

500-750-1000

Performance of very special visual tasks of extremely low contrast

I

10000-15000-20000

1000-1500-2000

A-C for illuminances over a large area (i.e. lobby space)
D-F for localized tasks
G-I for extremely difficult visual tasks

Gymnasium - 30 - 80 FC    Warehouse - 20 - 50 FC
Office - 60 - 75 FC   Machine Shop - 75 - 200 FC
Mfg/Assembly - 50 - 200 FC          Retail - 50 - 150 FC