newbie needs help lighting a 55 gallon
Login
User Name
Password   


Registration is FREE. Click to become a member of OrchidBoard community
(You're NOT logged in)

menu menu

Sponsor
Donate Now
and become
Forum Supporter.

newbie needs help lighting a 55 gallon
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #11  
Old 07-22-2019, 11:58 PM
Swimmingorchids Swimmingorchids is offline
Banned
 

Join Date: Jul 2019
Posts: 115
newbie needs help lighting a 55 gallon Male
Default

I literally would not worry about umol/2^s too much which is what I already mentioned.

All LED's these days are powerful enough to grow plants well, something that hasn't always been the case with artificial lighting in the past and exact calculations were needed.

you can place the light as close or as far away as you want

newbie needs help lighting a 55 gallon-bebfebd4-120f-4906-b92c-1e521b6c365f-_cr0-0-300-300_pt0_sx300__-jpg

The only thing you need to be aware of when buying LED's is that some sellers will try to mislead you and tell you the amount of watts fitted to the unit - not the watts the unit pulls from the wall - which is usually half that.

I can tell you the 300 watt unit on the last post draws 150 watts. Still good value. Won't have the same CRI value as the lights you were looking at but half the price per watt and decent lights - only reason I wouldn't get those units is because they have noisy fans to cool them

Last edited by Swimmingorchids; 07-23-2019 at 12:02 AM..
Reply With Quote
  #12  
Old 07-23-2019, 09:58 AM
Ray's Avatar
Ray Ray is offline
Senior Member
 

Join Date: May 2005
Location: Oak Island NC
Posts: 10,956
newbie needs help lighting a 55 gallon Male
Default

Swim made a good point. Actual watts are important; "equivalent" watts is a useless parameter for plants.

Unlike him though, I wish all lamps had published PPF data, as that's what's truly important, as it represents a quantity of light, as well as a true spectrum. Those two, combined, tell almost the entire story.

BBQ: Don't get sucked in by color temperature, as it's relatively meaningless in fluorescents and white LEDs, being a "corrected" or "correlated" color temperature - one that looks like that black body temperature to the human eye. Also, if you look at true published spectra for white LEDs, the "warmer" CCT's seem to have more far red in them, which is good for promoting flowering.

Here is a great graph showing the relationship between the plants' relative light absorption of the spectrum, and how PAR and the human eye response (lumens) differ from that.

__________________
Ray Barkalow, Orchid Iconoclast
Want Better Plants? READ THIS
shop.firstrays.com

Free Shipping in the US! (see terms & conditions for details)
Reply With Quote
Reply

Bookmarks

Tags
gallon, idea, light, lighting, novicei


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Newbie lighting help court_b Growing Under Lights 5 12-26-2014 07:16 PM
Terrarium lighting is it enough for my 75 gallon DirkHeifert Growing Under Lights 3 03-29-2014 10:27 AM
Orchid Newbie Room Lighting Evaluation MikeO88 Beginner Discussion 1 02-02-2014 03:02 PM
What Lighting for Indoor Orchid Garden? seashells1990 Growing Under Lights 5 04-08-2010 07:38 PM
Two (weird) newbie questions concerning lighting. quietmorning Growing Under Lights 2 06-05-2009 01:33 AM

All times are GMT -4. The time now is 04:13 AM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.