What is the CHEAPEST led light for a 20 long?

[Dj City]

I received the light and mounted it.

With blues on 100% and the white ch. barely on, I get avarage 380 par. I can crank up the whites and get nto the 500's but no need for that.
Par drops to 190 to 220 at the far ends of the tank.

Is this light good enough for the frag tank?

 

[lancesmith1]

wow. you can really see the light output spot under the fixture in this picture.

 

[Dj City]

wow. you can really see the light output spot under the fixture in this picture.

Yeah.
Seeing the light spread with my eyes is super helpful along with the par meter.

 

[oreo54]

I'd raise it a bit I suppose.

Yea cameras are more "neutral" than our eyeballs...

 

[Dj City]

I'd raise it a bit I suppose.

Yea cameras are more "neutral" than our eyeballs...

Can't raise it...

It sits under my QT tank.

See the light mounted directly under the QT?

These pics are horrible!
Darkish room. Phone pics.

 

[Dj City]

Par readings...

 

[Dj City]

I get a 297 par peak with just blues with no white. Average is at about 250 par with just blue.

Should I run blue and white or just blue?

 

[oreo54]

Personally.. pop the lenses run it at native 120.
Use plex or something unless you add a top or it has a shield.
Lower it..
Sorry, it's just me .. got this thing for coverage..
coverage will never be even (overlapping light cones) but it can be better..given the height restriction.

 

[Dj City]

Personally.. pop the lenses run it at native 120.
Use plex or something unless you add a top or it has a shield.
Lower it..
Sorry, it's just me .. got this thing for coverage..
coverage will never be even (overlapping light cones) but it can be better..given the height restriction.

I thought about doing that but I need the par more than the spread.
I can move corals where I need them but the light ain't moving and I don't want to lose par. Especially par from blues.