Amazon.com has many reviews of this product, some good, most not good.
This one from a farmer is most interesting.
http://www.mossbackfarm.com/archive/000238.html
 
Lori Schreier
Fertile Fields Farm
916 River Road
Westmoreland, NH 03467
(603) 399-7772
www.fertilefieldsfarm.com


As soon as self judgement or judgement of others arises the evolutionary possibility and potential of a conversation and/or relationship is put on hold. The physiological systems of both parties shut down and progress ceases until non-judgement is found. Fascinating right?
 
In a message dated 11/18/2012 8:34:07 A.M. Eastern Standard Time, [log in to unmask] writes:
The beginning and end of every season brings a flood of deer as we apparently have the best eats in town.  This fall has been the worst with them eating beets to the ground, whole cabbages, etc.
 
I heard of a new gadget that supposedly repells deer, "nite guard solar predator protector", a solar powered blinking light that supposesdly does a great job of keeping deer away. 
 
 
 
Has any one had any experiance with these?  Particularly with fields larger than a large garden, or existing problems.  The testemonials on the website are compelling, but a radio left in the field did not seem to work, nor did much else.  We did row cover a few critical crops which worked somewhat, but the row cover was pretty well shredded. 
 
Steve
 
Blue Ox Farm
842 Shaker Hill Rd
Enfield, NH  03748
 
603-632-9643
603-359-1374 (cell)
 
NHDAMF Organic Permit #166