Visual Comparison between 24x3W Cree & 20x3W Bridgelux (both Eshin

[kaykay]

Hi,

I have done a simple test using the 2 lights.

Photos taken using a DSLR on a tripod. Both lights hung at 15cm above water surface.

ISO constant at 1,000. White Balance "Fluorescent".

The 2 different settings:

1) F8, 1/25".

2) F5, 1/50"

The 2 light sets are:

1. Cree 24x3W dimmable.

12 Blue + 12 White. (50%B : 50%W)

Dimmers at full power.

This light is 30cm long from left to right.

2. 2 units of Bridgelux Aquawashers, each 10x3W. Total =20x3W

12 Blue + 8 White. (60%B : 40%W)

Not dimmable.

The light is 60cm long from left to right.

I know it is not a fair comparison, as one set is 72W, the other 60W.

The Blue:White ratio is also not similar.

But for reefers who want such a comparison before making the jump can use this rough guide to, perhaps, make a better decision.

Here goes..

1a) Cree set, F8, 1/25"

1b) Bridgelux set, F8, 1/25"

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2a) Cree set, F5, 1/50"

2b) Bridgelux set, F5, 1/50"

It is very obvious the difference in the brightness between the 2.

Whether it is down to the extra 12W, or more white ratio, it is difficult to pinpoint without more test patterns.

Bridgelux sets also seem purplish in general.

I must also add that photos taken with LED light cannot bring out the actual brightness or colourations as compared with actual visuals viewing directly from a human eye. The photos hardly did justice to the light sets.

So I leave it to you guys to see which lightings / light ratios you guys prefer in your future purchases.

Cheers.

[MadScientist]

wow, extra so much $$$ just for that little brightness!