75W Cree Led dimmable flood lamp Bulb ?

[geemanaz]

So i was at costco today and came cross 75W Cree Led dimmable flood bulb for $25.00.Looking at the box and say it have ten CREE XP-G R5 Cool White LED. So want to know if it will work on a reef tank.
photo of the light

 

[darryl_v]

Its 13.5watts......

Where does it say it has 10 XP-G R5 cool white? Now that would be surprising...for the price. Plus it means they would be running a 3w LED with 1.35watts.

 

[geemanaz]

Its 13.5watts......

Where does it say it has 10 XP-G R5 cool white? Now that would be surprising...for the price. Plus it means they would be running a 3w LED with 1.35watts.

The bulb have 7 XP-G R5 cool white led not ten look at the bulb wrong my bad

 

[johnanddawn]

those have been around for a while now
cool white should be about 6500 K and those say they are 3500K (technically more of a warm white)
and def not the 10K white we are use to on our aquariums
they "would" work but may appear very yellow to the eye

would make a really nice fuge light though cheap and energy efficient