PDA

View Full Version : Bluest 150w 20k bulb


mr pink floyd
01/13/2010, 07:03 PM
whats the bluest 20k MH bulb? Ive had phoenix bulbs for a while, but im looking for some more blue.

PAR isnt a huge issue, but the more PAR along with the color the better i guess


thanks

mike

nano427
01/13/2010, 07:23 PM
xm is the bluest but a little low on the par side

mr pink floyd
01/14/2010, 04:26 PM
how low is low?

anybody know some numbers?

stanlalee
01/14/2010, 05:19 PM
the PPFD is on manhatten reefs (sanjay testing). its at the very bottom of 150w but so is the ushio (BLV) 20k. I used that bulb anyway and corals grew fine. ushio 10k and AB 13k have over twice the PPFD as those but NONE of the 20k bulbs test well. Even the radium and Iwasaki 50k are down like 40% compared to the top 10k 150w. If your going for blue dont worry about the PAR. 20k bulbs seem to always perform better in actual practice then what the comparative numbers on paper would indicate.

nano427
01/14/2010, 07:41 PM
by the way, the phoenix is going to be one of the bluest bulbs out there. More blue in them than most 20k's. I just switched to 20k Radium and it is not even close to the phoenix's blue. However it is way brighter

mr pink floyd
01/14/2010, 11:54 PM
seems like i might as well stick with the phoenix, it seems to be the best of both worlds

Jo5h
01/15/2010, 12:03 AM
[violation]

Jo5h
01/15/2010, 12:05 AM
[violation]

justurmom
01/15/2010, 12:22 AM
jsut saying, but picture of bulbs with the lighting would be a great help for him i think.
even for me since i want to know whats the bluest you can get with halides

nano427
01/15/2010, 12:29 AM
price vs. performance you just cant beat the phoenix for a bluer bulb.

justurmom
01/17/2010, 11:19 PM
how about hte radium? radium vs. pheonix? any comments on this?

nano427
01/17/2010, 11:46 PM
by the way, the phoenix is going to be one of the bluest bulbs out there. More blue in them than most 20k's. I just switched to 20k Radium and it is not even close to the phoenix's blue. However it is way brighter

phoenix 14k very blue, not too bright
radium 20k, almost white very little blue, very bright

running on a sunpod 150