Thursday, April 26, 2012

New 450 watt LED grow light

A new LED grow light has been acquired and very soon all of my indoor gardening will be under LED lighting.  The new unit was imported from an overseas source with an extensive product line and very reasonable pricing.

Although the fluorescent lighting is adequate for most of the vegetables I have been growing, the cost of tube replacement every few years makes the long lasting LEDs much more cost effective.  And,  the spectrum produced by the LEDs is optimized specifically for plant growth, both vegetative and flowering.

The new LED has 150 3 watt LEDs with 90 degree convex lenses for a total of 450 watts.  It is so bright that you can not look directly at the light, but that is fine as I will enclose it in the grow chamber.  This new light produces 11 wavelengths:

11+ Wavelengths of Color Output: 760nm, 740nm, 720nm, 660nm, 630nm, 615nm-480nm, 460nm, 440nm, 415nm, 380nm

The graphic below shows the photosynthetic action spectrum, or, the wavelengths most used by plants for photosynthesis.


Fabian said...

Hello Jack,
Can you divolge your source for your LED's? I've considering some to begin my seeds indoors. I've been using a 2ft x 2ft fluorescent (2 u-tubes) my seedlings get very leggy with the diffuser almost on top of the higher leaves.

Jack said...

For seed starting you might consider a 90 watt red/blue/white. I have had good luck with HTG Garden Supply for these lights. They also have them on EBay and you could try bidding on one. Good Luck.