oh soo that light will be high? I want to aim around 30w. And i will probaly buy some flourish excel
Stop thinking in watts.Tstove15;3080483; said:oh soo that light will be high? I want to aim around 30w. And i will probaly buy some flourish excel
velanarris;3081890; said:Stop thinking in watts.
That's inaccurate. The reason why the complex formulae are out there is because the simple ones don't work.yikesjason;3082197; said:There is nothing wrong with using watts to compare lights or to figure out how much light you need. There are not many people who are going to go out and use special equipment or complicated formulas to figure out their lighting when there is already a simple common denominator listed on the outside of the box.
The watts per gallon rules loose at best, we all should know that by now. But the are based solidly on the actual light output of T12 fluorescent bulbs. If you want more percussion, there are tables that will give a comparison between the different types of bulbs. Example: 1 watt of T5 = 1.7 watts of T12. (that is just off the top of my head, it think it is about right though.)
All the ones worth buying. Every hagen light bulb comes with a lux scale, as do a lot of other manufacturers.yikesjason;3083474; said:yeah, but how many lights have you seen at the store that list the lux on the packaging.
And you're right, but we're not beginners, and to reinforce the WPG rule when beginners are looking to us makes us intellectually dishonest. We gotta next level our game or the hobby suffers.I understand what you are talking about though. Many beginners think that the watt per gallon rule is gospel. There are other factors. If someone wants to get so precise as to trying to figure out all of the variables and try to calculate lux, par, lumens, foot-candles and everything else, I think that is great. For most people, a general wpg rule with an understanding of comparison between bulb types will get them on to the right light configuration. The precise adjustments to the light is going to come from how long the lights are on and placement of the lights. Those adjustments are going to be made according to the individual needs of the tank.