My ODNO experiment, before and after pics. - Page 2
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Specific Aspects of a Planted Tank > Lighting

Thread Tools Display Modes
Old 06-02-2004, 07:52 PM   #16
John P.
Wannabe Guru
John P.'s Avatar
PTrader: (3/100%)
Join Date: Apr 2004
Location: Laguna Beach, CA
Posts: 1,321

Good deal everyone. Thanks for the advice. Sure beats the $100 I was thinking I'd have to shell out to AH Supply. Plus, the bulb replacement money I will save--nice!
John P. is offline   Reply With Quote
Sponsored Links
Old 06-03-2004, 03:06 AM   #17
Algae Grower
PTrader: (0/0%)
Join Date: May 2004
Posts: 103

I would still consider adding a cooling fan to help extend the life of the bulbs.
Considered, and kind of required I think. I bench ran the light for twelve hours today to make sure I didn't have any overheating issues, none came up, the ballast stays kind of hot but I can keep my hand on it as long as I want, it's maybe 100-110F.

The bulbs do run pretty hot, if I don't run them with a 1" stand off above the glass the amount of heat built up makes them too hot to touch. The entire hood, with stand offs gets "lukewarm" to the touch. After 10 hours the bulbs get hot enough that I can only keep a finger on them for about 4 seconds.

With a fan running blowing the in the general direction of the hood, not even right on the hood (a 4" clip-on fan) there is a noticable drop in temperature, so I'm going to run a fan blowing across the hood of the tank. If anything it will keep the light from heating up the tank as it's only 20 gallons.

Here is a final pic of it running on the tank with the "custom" stand offs installed (they are chop sticks cut down and painted black.)

I added the plants today, the guppies are sure enjoying them.

Also thanks for the clarification on 2x vs 4x. I put a amp gauge on the AC line of the ballast and it is drawing 0.76 ampers. So in theory it is producing 91.2 watts, but I'm sure some of that is lost in heat.

However, if it is indeed producing that wattage that gives me 4.56 watts/gal, so I may need to adjust the wiring. We'll see how the plants do.
Desolas is offline   Reply With Quote

Thread Tools
Display Modes

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

Forum Jump

All times are GMT. The time now is 07:08 PM.

Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012