E5 lamps in stock + BIG biological filtration deals

[Marine Depot]

E5 lamps in stock + BIG biological filtration deals

Upgrade to power-saving LED without changing your entire lighting system

Your T5 will never be a T5 again!



Biological Filtration: Grow Beneficial Bacteria for a Thriving Ecosystem

All I want for Fishmas #6: ATI T5HO Bulbs + Euroquatics E5 Lamps

[gus6464]

So how about some PAR numbers on the E5 bulbs? I know you guys have a PAR meter.

[Marine Depot]

So how about some PAR numbers on the E5 bulbs? I know you guys have a PAR meter.

With T5 bulbs, there are several other factors that must be considered: such as distance from water, reflector/fixture used and bulb combination. For these and other reasons, you very rarely see PAR numbers for T5 bulbs/fixtures. Additionally, there is the issue of PAR meters reading low on the blue spectrums and high on the red spectrums. We'd prefer to wait for a more scientific analysis from Euroquatics rather than just putting a meter below a bulb.

 

From our month-long testing of the blue pop bulb, we have been very impressed with the visual look of the bulb. Coral growth/health wise, the E5 seems to be performing as well as the T5 thus far.

[Sunar357]

Those E5's are interesting. Can't wait to see some reviews on them.

[gus6464]

With T5 bulbs, there are several other factors that must be considered: such as distance from water, reflector/fixture used and bulb combination. For these and other reasons, you very rarely see PAR numbers for T5 bulbs/fixtures. Additionally, there is the issue of PAR meters reading low on the blue spectrums and high on the red spectrums. We'd prefer to wait for a more scientific analysis from Euroquatics rather than just putting a meter below a bulb.

 

From our month-long testing of the blue pop bulb, we have been very impressed with the visual look of the bulb. Coral growth/health wise, the E5 seems to be performing as well as the T5 thus far.

 

 

For starters none of the T5 rules apply to these for the following reasons.

 

1. The bulbs do not use any part of the reflector in a T5 fixture (per the manufacturer) since the LEDs inside are not configured to fire in 360 degrees.

 

2. Ballast and power factor have no bearing on the output of the E5 bulb as it is fixed (per the manufacturer).

 

3. Apogee quantum sensor is only <10% off in 450-460nm. That margin of error is not enough to skew the readings that much. Or just use a Li-Cor LI-190R like bulk reef supply does and that margin of error is now basically gone.

 

The manufacturer seems to be very resilient to providing PAR data. Seeing how this industry is when it comes to marketing if the PAR data was actually equal or better than an ATI blue+ it would sure as hell be plastered all over the place. The asking price of these bulbs are a hard pill to swallow when one can buy 3-4 ATI bulbs and they are unable to match the output or at least get somewhat close to it.

[Marine Depot]

For starters none of the T5 rules apply to these for the following reasons.

 

1. The bulbs do not use any part of the reflector in a T5 fixture (per the manufacturer) since the LEDs inside are not configured to fire in 360 degrees.

 

2. Ballast and power factor have no bearing on the output of the E5 bulb as it is fixed (per the manufacturer).

 

3. Apogee quantum sensor is only <10% off in 450-460nm. That margin of error is not enough to skew the readings that much. Or just use a Li-Cor LI-190R like bulk reef supply does and that margin of error is now basically gone.

 

The manufacturer seems to be very resilient to providing PAR data. Seeing how this industry is when it comes to marketing if the PAR data was actually equal or better than an ATI blue+ it would sure as hell be plastered all over the place. The asking price of these bulbs are a hard pill to swallow when one can buy 3-4 ATI bulbs and they are unable to match the output or at least get somewhat close to it.

 

I touched base with Euroquatics about some of your points. Here is what they had to say...

 

"New T5 lamps have a slightly higher PAR than E5 for 2 reasons:

1. The T5 is new and that advantage lasts for about 2 months.
2. T5 has a big green spike which PAR meters are tuned to which gives a high reading based on a region that coral use the least.

E5 lamps will use some of the reflector, but very little. We do see very slight improvements with some reflectors."