bad coffee

Inept at life.
Rating - 100%
27   0   0
BC, can you show me a plot where a 150W DE can out perform a 250W SE bulb from the same manufacture using similar type of ballast?
ME said:
yes there is a difference.

(Generally speaking)

You get more light out of a DE bulb than it's SE counterpart. Most info concludes that a 150w DE puts out about the same amount of usable light as a SE 250w.
DE's are still 100w less than a 250. Unless you either overdrive the 150, or use a really bad reflector on the 250 you won't get more light.


(PAR and PPFD are the same measurement)
AB 10k 150DE
Ballast IceCap
Power 172
Voltage 119.7
Current 1.54
PAR 66.9
CCT 12479.3


AB 10k 250DE
[FONT=Times New Roman, Times, serif]Ballast [/FONT][FONT=Times New Roman, Times, serif]IceCap[/FONT]
[FONT=Times New Roman, Times, serif]Power [/FONT][FONT=Times New Roman, Times, serif]248[/FONT]
[FONT=Times New Roman, Times, serif]Input Volts [/FONT][FONT=Times New Roman, Times, serif]120.1[/FONT]
[FONT=Times New Roman, Times, serif]Input Amp [/FONT][FONT=Times New Roman, Times, serif]2.29[/FONT]
[FONT=Times New Roman, Times, serif]PPFD [/FONT][FONT=Times New Roman, Times, serif]77.3[/FONT]
[FONT=Times New Roman, Times, serif]CCT [/FONT][FONT=Times New Roman, Times, serif]7930[/FONT]

So for the same lamp on the same manufacturer ballast you get:

150w you get 66.9 par
250w you get 77.3 par.

it's pretty close for what I do with my lights, and I use 100w less per light. A big saving on the Elec. bill. Now I wouldn't chance 150DE on a 24" deep tank, but I will put them on a 22" tank.

all info from sanjays pages.

B​
 

cali_reef

Fish and Coral Killer
Rating - 97.3%
36   1   0


DE's are still 100w less than a 250. Unless you either overdrive the 150, or use a really bad reflector on the 250 you won't get more light.


(PAR and PPFD are the same measurement)
AB 10k 150DE
Ballast IceCap
Power 172
Voltage 119.7
Current 1.54
PAR 66.9
CCT 12479.3


AB 10k 250DE
[FONT=Times New Roman, Times, serif]Ballast [/FONT][FONT=Times New Roman, Times, serif]IceCap[/FONT]
[FONT=Times New Roman, Times, serif]Power [/FONT][FONT=Times New Roman, Times, serif]248[/FONT]
[FONT=Times New Roman, Times, serif]Input Volts [/FONT][FONT=Times New Roman, Times, serif]120.1[/FONT]
[FONT=Times New Roman, Times, serif]Input Amp [/FONT][FONT=Times New Roman, Times, serif]2.29[/FONT]
[FONT=Times New Roman, Times, serif]PPFD [/FONT][FONT=Times New Roman, Times, serif]77.3[/FONT]
[FONT=Times New Roman, Times, serif]CCT [/FONT][FONT=Times New Roman, Times, serif]7930[/FONT]

So for the same lamp on the same manufacturer ballast you get:

150w you get 66.9 par
250w you get 77.3 par.

it's pretty close for what I do with my lights, and I use 100w less per light. A big saving on the Elec. bill. Now I wouldn't chance 150DE on a 24" deep tank, but I will put them on a 22" tank.

all info from sanjays pages.

B​

Hey B, those both are DE bulbs, I was asking about a 150DE and a 250W SE. 250W is always going to be brighter the a 150W bulb, unless incorrect ballast is used. You can't get similar outputs from a 150WDE and 250WSE, that is a mis-informed "opinion".

The newer style DE pendents are more efficient in directing light into a 24x24 spot, but the pendents are not restricted to a 150W bulb, the are available for all DE bulbs.

I have just about tried all the 150W and 250W DE bulbs and many 150W, 175W, 250W, and 400W SE bulbs, I personally like the 250W SE XM 10,000K bulb driven by a M80 ballast, probably the cheapest bulb you can buy on a per PAR\PPFD basis.
 

Sponsor Reefs

We're a FREE website, and we exist because of hobbyists like YOU who help us run this community.

Click here to sponsor $10:


Top