LEDAdd1ct
Flashlight Enthusiast
I will be powering a neutral, 80CRI Cree XM-L2 with either a 150mA or 350mA driver.
I've done the math, and at an estimated five hours of use per night in an emergency lighting scenario,
my battery of two cells in series will net me somewhere around 67 lumens for one month or 154 lumens for two weeks,
again, at five hours per night in either scenario.
I already have the host, LED, cells, and both a 150mA and 350mA buck driver.
Which way would you go?
67 ceiling bounced lumens is enough for a bathroom, but, in my opinion, not really enough for a living room or kitchen.
One month of runtime does sound pretty darn cool; however, my guess is that if we don't have power for a whole month,
there are much, much larger issues to worry about.
Two weeks at 154 lumens is only half the time, but, it is more than twice as bright.
In the past, I have regretted going too dim and wished for more light.
What do you guys think?
Which way would you go?
I'm learning towards 154 lumens for two weeks.
I've done the math, and at an estimated five hours of use per night in an emergency lighting scenario,
my battery of two cells in series will net me somewhere around 67 lumens for one month or 154 lumens for two weeks,
again, at five hours per night in either scenario.
I already have the host, LED, cells, and both a 150mA and 350mA buck driver.
Which way would you go?
67 ceiling bounced lumens is enough for a bathroom, but, in my opinion, not really enough for a living room or kitchen.
One month of runtime does sound pretty darn cool; however, my guess is that if we don't have power for a whole month,
there are much, much larger issues to worry about.
Two weeks at 154 lumens is only half the time, but, it is more than twice as bright.
In the past, I have regretted going too dim and wished for more light.
What do you guys think?
Which way would you go?
I'm learning towards 154 lumens for two weeks.