John Thomas wrote:
I'm looking for a hood that I can put on top of a 10x20 inch glass
lid.
Hopefully, it would be bright enough to grow plants in a (deep) 20
gallon freshwater tank.


After a couple of weeks of looking, all I've been able to find so far

are 10W chunks of plastic at Engulf & Devour Pets, or when online,
500W
marine setups that put out enough photons to compete with collapsing
neutron stars.


Any ideas where I could find a happy medium between the two extremes?

Maybe something around 80 W and under $100?

http://www.petwarehouse.com has a PC fixture, 20" and 80W, for $105
(only a little over $100 ;-) ... they also have a 24" fixture w/65W for
$60.