indoor lighting guide
General office / classroom lighting
General office / classroom: recommended 300–500 lux (NBC 2016 Part 8 Table 1). See which HiLums and Oreli LED fixtures reach it, typical mounting heights, and…
Recommended lux
300–500
Uniformity (min/avg)
≥ 0.6
Typical mounting height
3 m
Maintenance factor
0.8
Source: NBC 2016 Part 8 Table 1. Values are maintained illuminance; confirm against the current standard for tenders.
Size your general office / classroom project
Enter dimensions, pole or mounting height and we calculate lumens, wattage and quantity, then configure AC/DC/solar, CCT, surge and mounting.
Recommended: LED Panel & Surface Lights
Slim panels and surface lights for homes, offices, shops and corridors.
Oreli FASCIO 8W 8W LED Panel Light
Slim | Efficient | Versatile
Oreli FASCIO 15W 15W LED Panel Light
Slim | Efficient | Versatile
Oreli FASCIO 22W 22W LED Panel Light
Slim | Efficient | Versatile
Oreli CHARM40 40W LED Panel Light
Bright | Uniform | Reliable
Read before you specify
Frequently asked questions
How many lux does general office / classroom need?
Indian practice (NBC 2016 Part 8 Table 1) recommends 300 to 500 lux maintained on the task plane with uniformity of at least 0.6. New installations should target 20–30% above the maintained value to allow for lamp depreciation and dirt.
What mounting height is typical for general office / classroom?
Around 3 m is typical. Higher mounting needs more lumens per fixture or closer spacing to keep uniformity.
Which HiLums or Oreli fixture should I use?
LED Panel & Surface Lights are the usual choices. Use the bulk & customisation portal to enter your dimensions; it sizes lumens, wattage and quantity and lets you choose AC, DC or solar supply, CCT, surge protection and mounting.