How to replace 400w metal halide high bay by 100W LED?

It’s so easy to replace 400W metal halide high bay by 100W LED.

First we look at the parameters of the two lamps.

 

100W LED round high bay: 174 lumen per watt

Luminous flux (Luminaire): 17359lm
Beam angle:90°

 

400W metal halide high bay:

Beam angle:90°
Luminous flux (Luminaire): 19540 lm
Luminous flux (Lamps): 32000 lm
Luminaire Wattage: 372.0 W

Next we use Dialux to do a simulation analysis.

 

led replacement for 400w metal halide high bay

The simulation of 100 watt LED round high bay

 

400w metal halide high bay lumens

The simulation of 400W metal halide high bay

 

We can see that the illuminance of the two lamps is very close by simulation. That is why 100 watt LED round high bay is a replacement for 400W metal halide high bay.