Fake News

We couldn’t help but notice a recent newsletter that claimed "HMI and tungsten lighting instruments convert 100% of the power they use into heat.” We would normally let this remark pass as we laugh among ourselves, but then we thought maybe it’s time to call Bullshit ! . Were this statement true, when you plug in an HMI or tungsten fixture and turn it on, no light would come out ! Here are the simple facts :

Tungsten – 20 lumens/watt
HMI – 80-100 lumens/watt
LED – All over the map

The lumens emitted from a source compared to the power it draws is what really matters. If you’ve made it to the end of this newsletter, aren’t bored yet, and are looking for some facts, check out this chart on luminous efficacy. And remember, test, test, test...

https://www.engineeringtoolbox.com/luminous-efficacy-d_1932.html