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  • From: Amy Little <amylittle@hvc.rr.com>
  • To: permaculture <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] HID plant lights
  • Date: Sun, 28 Mar 2010 16:49:07 -0400

This is a 250 watt total lighting older bulb with good reflector. I figure it will cover 3x3, depending on how close
I am concerned that the light may be too close and harm the plants, but I like the stocky growth.
How close is close enough?

At 03:40 PM 3/28/2010, you wrote:
You didn't really give enough information for anyone to be able to
answer the question. What is the bulb wattage? Is this supplemental
lighting or the total lighting? Is is a new bulb or an old bulb? Are you
using a reflector?

A 1000 watt metal halide with a reflector will light an 8' x 8' area as
the only light source. If it is supplemental lighting, you could light a
10' x 10' area. So try 4 - 5 feet above the crop for a 1000-watt. I've
never used a 400 watt.


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