Lumens vs. Kelvin - General Discussion - Nano-Reef Community
2004年12月1日 · You're correct about the lumens, but not the color temperature. The sun is far hotter than 10000 degrees kelvin. (The Corona, or outermost layer of the sun is well over 2,000,000 degrees K and the core is over 15 million) Color temperature is determined by heating a carbon block. If you heat it to 500-1000 degrees Kelvin, the carbon will glow ...
Lumens vs. Kelvin - Lighting Forum - Nano-Reef Community
2004年12月1日 · Lumens vs. Kelvin Lumens vs. Kelvin. By ProFlatlander15, December 1, 2004 in Lighting Forum. Start new ...
How many LED's? Number vs watts vs lumens Evil hlp?
2010年3月28日 · I just signed up on this forum. I don't have a nano reef. But I'm getting ready to build LED lighting and this appears to be the place. Over the past week I've taken in a TON of info on spectrum and watts vs lumens and PAR. So I'm trying to figure out how many LEDs I need to put in my tank. Howev...
LED vs. PC light comparison - PAR & lumens
2009年1月28日 · Has anyone done a watt-for-watt comparrison of high powered, 3W LEDs to PC bulbs? I'm incorporating LEDs into my biocube-14, and I've noticed that 2 of the Cree XR-E royal blue LEDs seem to put out more visible light than my 24w PC bulb. I've been struggling to find a way to fit the LEDs in the s...
Datasheet comparison: Luxeon M vs. Cree XM-L and XM-L2
2013年7月13日 · The term "lm/w" stand for "lumens per watt". Originally posted on Reef Central by me (asid61 there). Please point out the math errors I no doubt made. Comparing the Cree XM-L and Luxeon M The Luxeon M neutral white (higher bin, 70 CRI) has a test efficiency(700ma) of 125lm/w, with a typical lumin...
Watts vs. Kelvin ? - Lighting Forum - Nano-Reef Community
2008年6月28日 · In a 12g tank if I add MH lighting what am I looking for? 70w mh @ 20k or 150w @ 12K. Unless I am misunderstanding Kelvin an water penetration are the most important right?
Hipargero LED -vs- Lominie Pixie 30 LED - Nano-Reef Community
2020年2月10日 · Lominie LED Aquarium Light Pixie 30. Central light source could be better for my squarish tank no fan customize the spectrum can adjust intensity HIPARGERO LED. Has a fan only blue/white adjustment can adjust intensity Lomine on left Hipargero on right.
(TV UV HV) Violet showdown - LEDGroupBuy vs SemiLED
2013年1月13日 · The newer Epistar sourced Violets are definitely a step up in quality though, but a more non-biased test would be a 405nm Semiled vs 405nm Epistar, and a 415-420nm Semiled vs a 410-420nm Epistar. SemiLEDS have been one of the main Violet producers out there, which says something considering Cree doesn't even make them yet.
Bridgelux vs Cree - Lighting Forum - Nano-Reef Community
2011年11月13日 · Bridgelux doesn't make blue LEDs, and they don't make colored LED's. In fact, Bridgelux doesn't make *any* LED above 6500k. Any light advertising Bridgelux LED's with any color mix other than 6500-2700K is a Chinese copy. I've pleaded with Bridgelux reps to make royals, and they said no. Cree on the other hand does make colored LEDs.
Quick Comparison: Orbit Marine LED vs Odyssea ADV Plus
2015年6月13日 · Hey this helpful to me at least! I I know this is a LED t5/mh comparison but can you compliment on the quality of the Odyessa fixture? I'm on the fence on which fixture to get. The odyessa mh/t5 or just the 4 bulb fixture. The other thing is most people change out the bulbs so that gives you a large variety of colors you can get.