Raging Stalk
Active Member
That's why we want the LER number - it is basically at what lumen/w where all input electricty is converted to light. Or another way, none of the electricity is used to generate heat. LER is useful on the path to figuring out efficiency. You could actually figure out a similar efficiency by measuring the temperature change.
Lower CCT higher cri numbers usually have lower LER values which can be attributed to shifts in spectrum necessary to balance the white light.
Lower CCT higher cri numbers usually have lower LER values which can be attributed to shifts in spectrum necessary to balance the white light.