You simply cannot buy a better tankless water heater. Each of the tankless water heaters on our shortlist is a top choice in its price/performance bracket. However, the overall winner of our âBest of the Bestâ award is definitely the Stiebel Eltron Tempra 24 Plus.
The difference between the lux and the lumen is that the lux takes into account the area over which the luminous flux is spread. 1000 lumens, concentrated into an area of one square metre, lights up that square metre with an illuminance of 1000 lux.
How to Convert Lux to Lumens. Lux is the globally standardized SI unit of illumination. It provides a uniform standard by which the amount of visible light present in a given space can be described. A lux rating is used to describe the perceived illumination of a known space, such as a room or a stage. The lumen is the globally standardized SI unit of luminous flux--meaning that it measures just how much visible light is produced by an object such as, for example, a light bulb. With clarity on the difference lumens and lux, conversion between the two is simple.