[ichy]

Great write up. I have the Razor and Stingray over my 30" and I confirm your results, Low light at best! But cheap!

I have another Razor coming, I got one for $28.00. I'm going to tear it open and see if I can't control it with an Arduino to turn on 6 LEDs and then all on.

But I think I'm going to have to get a Planted+ over the tank soon!

 

[ichy]

Just so I'm on the same page...when you say Planted+ you mean the FugeRay Planted+ correct?

 

[ichy]

combined that is a bit of an interpretation.. Adding the PAR pushes it above "at best"..

I am going by purely qualitative measurements, but my plants are really stretching and the red ones just have a tinge of red on the top near the surface.

I was getting much better plant results with my DIY.

 

[ichy]

Thanks yea I saw the 180 (18Ohm) from the photo.
That is where this came from




(12- 3 x 3.4)/.150 = 12 Ohms.. but I'm guessing on the V(f) snd current draw at it..
Most run in this area..which is close to .5W..


http://electronics.stackexchange.co...specced-values-and-real-values-for-led-strips

for fun on how to increase your output (and overheat) your LED strip light..
Hint: replace ps w/ one larger in voltage than you have..
note though 150mA is pretty well on the top level for .5W LED's.

https://d114hh0cykhyb0.cloudfront.net/pdfs/spmwht5225d5waq0s0.pdf
http://www.homeled69.com/faq_17.html

I've got a 15v power supply on the bench looking for a home!