Hello all!
I just changed my 65W PC lamp above my 25G tank today, but before I did so I took a light measurement with my Lux meter (out of the water a set distance from the fixture) then I took another reading after replacement.
The change was dramatic.
My old bulb was a year to a year and a half old, on a light cycle of an average of 10 hours on per day.
The measurement was 6,900 LUX
The new bulb was a different brand, but same size and wattage
It measured 10,500 LUX
That's a 52.17% increase in light output.
WOW. It does look visually brighter, but I probably wouldn't have guessed there was that much of a change.
I'll be keeping a close eye on my CO2 levels for the next couple days
Whiskey
I just changed my 65W PC lamp above my 25G tank today, but before I did so I took a light measurement with my Lux meter (out of the water a set distance from the fixture) then I took another reading after replacement.
The change was dramatic.
My old bulb was a year to a year and a half old, on a light cycle of an average of 10 hours on per day.
The measurement was 6,900 LUX
The new bulb was a different brand, but same size and wattage
It measured 10,500 LUX
That's a 52.17% increase in light output.
WOW. It does look visually brighter, but I probably wouldn't have guessed there was that much of a change.
I'll be keeping a close eye on my CO2 levels for the next couple days
Whiskey