Ushio 10K & 14K same PAR hard to believe

Steve Ruddy · Jul 18, 2009

The quote below was taken from this thread and I thought it should have it's own dedicated thread.

according to the ushio their 10k and 14k HQI have the same amount of par...thats a little hard to believe won you say?

Not at all. Their 14K are very bright and not at all blue like some. I just took PAR readings myself using their 150w de bulbs. Bulbs were 6" off the surface with sensor 10" below. Initial readings are as follows.

150W 10K de = 395
150W 14K de = 375

jhsu703 · Jul 18, 2009

how does the ushio compare to phoenix DE hqi bulbs in regrads to par level? Does any one else compare both the 10k and 14k Ushio?

gilmour01 · Jul 18, 2009

jhsu703 said:
how does the ushio compare to phoenix DE hqi bulbs in regrads to par level? Does any one else compare both the 10k and 14k Ushio?

curious to know that myself

TJ15 · Jul 21, 2009

I like the look from the Ushio 20K much more than the PHX bulb. It is a more natural looking blue.

Sikryd · Jul 21, 2009

TJ15 said:
I like the look from the Ushio 20K much more than the PHX bulb. It is a more natural looking blue.

What ballast is that on?

M80's "overdrive" the Phoenix's and are what is recommended, and will give you a crisp white light. An electronic will underdrive and cause it to look like a 20k blue hue.

I think when bulbs are mentioned - the whole setup should be involved since a bulb can look COMPLETELY different on different ballasts. Reflectors play a part too, although in regards to par only.
So to compare apples to apples, more information can be helpful.