DE or SE MH bulb?

baruchbl · 08/11/2006, 11:00 PM

I use in my reef tank one single SE 400w MH bulb. I want to change it to 400 DE bulb.

My question is: Do the DE give more amount of light then the SE bulb?
Do the SE 400w MH bulb give the same amount of light then the DE 250w MH bulb?

theatrus · 08/11/2006, 11:55 PM

a. No, not nessecerily, unless overdriven with an HQI ballast
b. No. The 400w will give off more light. HQI ballast will overdrive both bulbs in both cases.

08/11/2006, 11:00 PM	#1
baruchbl Registered Member Join Date: Oct 2003 Posts: 533	DE or SE MH bulb? I use in my reef tank one single SE 400w MH bulb. I want to change it to 400 DE bulb. My question is: Do the DE give more amount of light then the SE bulb? Do the SE 400w MH bulb give the same amount of light then the DE 250w MH bulb?

08/11/2006, 11:55 PM	#2
theatrus 100-mile-commuter Join Date: Dec 2004 Location: almost nevada Posts: 4,721	a. No, not nessecerily, unless overdriven with an HQI ballast b. No. The 400w will give off more light. HQI ballast will overdrive both bulbs in both cases. __________________ Custom electronics purveyor. blueAcro.com Current Tank Info: 90g SPS+mixed reef (10 yrs): LEDBrick LEDs, 40g custom sump, Ca reactor, chiller, Vortech, lots of custom electronics