Why not T12 VHO's ??????????

[ccoral]

I also heard of HO T-5 coming out from Commodity axis with a replacable 60"/80w-72"/105w HO T-5 bulb. Metal parabolic reflector, water resistant endcaps.
Saw at I-mac they are to be released next month

[fat-tony]

second contact to them about the link not working. Bulbs just came available again and still can't order.

[ccoral]

Fat-tony
They will be out the first of the month. I know custom aquatics will have when they arrive

[RichConley]

Originally posted by hollywood300m
First of all, you cracked me up Save our reefs...I appreciate the honesty.

However, there is something I can't get my mind around...

1.) T5's produce more PAR?

2.) How could a 39watt bulb be more intense than a 96watt bulb? Now I did take 1 year of physics in college, and I understand the unit of measure for power in this case is "watt", but the more energy you have is proportional to the intensity or output of light.

So with that in mind...wouldn't a 39 watt lamp emit less light than a 96 wat bulb (stand alone with out T5 reflector)?

Help me understand

Efficiency factors. VHO are basically really innefficiently overdriven NO fluorescents with heavier end pieces. A TON of the energy is lost as heat. A 48" VHO bulb puts out about 6000 lumens at 110w. A 32w NO T12 puts out 3500 lumens.

The T5s are more efficient than VHO, and then you get to add that theyre smaller, so theyre easier to reflect, and you can fit a lot more of them.