Hello,
I wanted to know if I'm calculating the lux of my LED array correctly and thought this would be a good place to ask.
The LEDs I'm going to be are 3W with 240 lm per LED, with a 60 degree viewing angle.
I was using the calculator from this site:
http://www.rapidtables.com/calc/light/lumen-to-candela-calculator.htm
240 lm with 60 degree viewing angle = 285.11 cd
http://www.rapidtables.com/calc/light/candela-to-lux-calculator.htm,
285.11 cd at a distance of 1 meter ~285 lux at 1 meter.
Is this correct? Am I misapplying these calculators?
I'm making a SAD therapy light with a user distance of 1 meter. Therapeutic levels of light for SAD are 5,000 to 10,000 lux.
So when I plug in my numbers, it comes back that I need only (10,000/285) about 35 LEDs for this project. It would seem like I'd need more than this.
Just wanted to check my "math" and numbers.
Thanks for any help.
I wanted to know if I'm calculating the lux of my LED array correctly and thought this would be a good place to ask.
The LEDs I'm going to be are 3W with 240 lm per LED, with a 60 degree viewing angle.
I was using the calculator from this site:
http://www.rapidtables.com/calc/light/lumen-to-candela-calculator.htm
240 lm with 60 degree viewing angle = 285.11 cd
http://www.rapidtables.com/calc/light/candela-to-lux-calculator.htm,
285.11 cd at a distance of 1 meter ~285 lux at 1 meter.
Is this correct? Am I misapplying these calculators?
I'm making a SAD therapy light with a user distance of 1 meter. Therapeutic levels of light for SAD are 5,000 to 10,000 lux.
So when I plug in my numbers, it comes back that I need only (10,000/285) about 35 LEDs for this project. It would seem like I'd need more than this.
Just wanted to check my "math" and numbers.
Thanks for any help.