cisco1717

Advanced Reefer
Location
Queens
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Hi all, i am thinking of getting a new refugium light for my sump. however the light fixture comes in 15 or 25 watts both with a 6500k bulb. I know that more watts mean more power and consumption but what does that mean when it comes with the same 6500k bulb? and same size.
Also i was thinking of going cheap and simple and go with a flood light with a 5100k. I've heard it works great and it will grow macro algae and you can get those bulbs at home depot but i couldn't find it there. any advice on this.
 

mbg75

DIATOM MAGNET
Location
Mt Sinai, NY
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This is the Home Depot bulb
ImageUploadedByTapatalk1366040854.735692.jpg
 

strgazr27

Advanced Reefer
Location
Kings Park, NY
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MBG is correct. lumens is a measure of the bulbs light output. Kelvin is a measure of its color temp as compared to daylight which is roughly 5500K when looking towards the horizon, 6500K on an overcast day and 15000-25000 looking at the zenith on a cloud free day.
 

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