Bye temperature problems. Hello cold light. A good alternative to a akzeptalen price.

590 mm is no coincidence.
Pool the company JEWEL have specially chosen this modest custom sizes for the bulbs.
This LED is intended to be implanted into the mountings for the 80cm basin.
I have the T5 lamps. The light from the neon lights is yellow, warmer and brings bright colors to better advantage.
The LED light is more cold and white. But the fish colors are still beautiful and strong stresses.
It is matter of habit. At the beginning of mourning after T5 yellow.
If I put the LED in the rear or front version, the pool is not as nice as illuminated in the middle.
So one can undermine and dismantle the cover with a Dremel. Then you get the lights placed in the middle.
Since missing the supportive middle frame and flexes the whole,
I have a mini double T-bar brought ausm Hardware these fixed just like the lamp with cable ties.
From the top you can see nothing. That was important to me. For rebuilding help I am happy to help.
As others have already reported the LED is too short to the whole basin illuminate the left and right.
The plants on the sides cast shadows. I think it's good because some fish species can be pulled back.
If that's not enough, you should use the 74cm lamps.
Since I had problems with extreme heat 28 ° C, the lamps are a good alternative.
My pelvis in 24 ° C warm living room now reaches only 25 ° C in a 12 hour burn time.
They are not perfect but currently there is nothing better for cheap money.
It is currently the only affordable for me version with a waterproof lamp cooling is enough
to be placed in an aquarium lid can.

Positive Characteristics:
Cooler operating temperature
Dimmable for sunrise and sunset with controller
no maintenance and follow-up costs
always the same luminosity
negative characteristics:
cooler whiter light color
Beck illumination at the edge not to 100 '%.

So I think that the positive aspects in my case exceed negative.
By the by, I can only recommend and this lamp
In contrast to these other LEDs are built here for aquariums.