MH Bulbs are a pain

[pterfloth]

I just bought a SE Phoenix 250w 14k bulb from OA. Still burning in. Bluer than the SE 250w 14k Aquaconnect so far.

[lastlight]

is the SE also an hqi bulb? are you running it as such?

[pterfloth]

Originally Posted by lastlight

is the SE also an hqi bulb? are you running it as such?

I am running it on an electronic ballast. I found this online though.

Phoenix 250 Watt 14,000K (Single Ended) Features and Benefits:
- 14,000 Kelvin Color Temperature (Crisp White Light/Blue Tint)
- The Best Combination of Color and PAR
- Excellent With or Without Actinic Supplementation
- Operate on a HQI Metal Halide Ballast, Pulse-Start Ballast or Electronic Ballast

[banditpowdercoat]

Originally Posted by lastlight

is the SE also an hqi bulb? are you running it as such?

I though HQI was a DE variant?

[pterfloth]

Originally Posted by banditpowdercoat

I though HQI was a DE variant?

HQI and DE are not the same although this seems to be a common misconception. HQI is a type of ballast that can run DE and SE bulbs. I ran 3 HQI ballasts firing 3 SE mogul bulbs. If you check Sanjay's lighting reviews, the HQI ballasts provide the highest PAR values for the same bulb vs other ballast types.

http://www.advancedaquarist.com/issu...4/feature2.htm

[chandigz]

I always adjust the clips on the fixture. I loosen the screws, put the bulb in and then tighten the screws.