Quote:
Originally Posted by Rainer
No.
But a good reflector and subsequent tight beam, plus color spectrum CAN make up for less lumen output in many cases.
That said, I just saw someone post about a recent 3W back up "appearing" to him to be brighter than his 21W.
And some people claim to have seen UFOs and Big Foot. I don't place too much stock in some people's eye witness accounts.
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actually when dealing with light it is the output in foot-candles that is what matters. Your lumen rating will effect this number. see wikipedia for more
Foot-candle - Wikipedia, the free encyclopedia Basicaly while the water will filter some wavelengths faster than others effecting perception of strength. The strength of a light can only be measured in foot candles so that you are compareing apples to apples.
now if you wanted to get realy tecnical you could bring a light meter under watter inside a video houseing and compare different types of water and at different depths to see which color tempratures of light fall off faster.