retro/conversion bulbs/lamps

jh35ky123April 19, 2008

i have a hps 250 watt ansi s50 and would like a good bulb for my grow closet in an apartment? halide im guessing since its about the only light i get,any good options on conversion/retro bulbs or will hps work with the 3, 4 ft floros i got? growing peppers and tomatoes thx

Thank you for reporting this comment. Undo

Just use the HPS along with 6500K fluoros for the blue component. HPS puts out a lot more photons, and conversion lamps are a poor compromise. I've used 400W conversion lamps and I've never been impressed compared to an actual dedicated MH lamp on an MH ballast.

    Bookmark   April 26, 2008 at 8:44PM
Thank you for reporting this comment. Undo

(Lermer) I don't know what 400w conversion lamps Paul is
talking about, but in my approximately 10 years experience
with Ceramic Metal Halide, they far, far exceed
conventional Metal Halide and far exceed HPS. The GE
ceramic metal halide has a higher output than the Philips.

You could use HPS along with 6500 fluorescents, but that
would be more expensive and use more watts. Of course if
you add 3 x 54 watts, you are using 162 watts more so I
would be very surprised if you didn't get more yield.

If you use 4' fluorescents but your plants are only the
recommended 2' tall, you are wasting a lot of light
(assuming you use the fluorescents in a vertical
orientation as side lights, which is what I recommend.)

    Bookmark   May 2, 2008 at 10:42PM
Sign Up to comment
More Discussions
germinating and lighting
I am about to start some hot pepper seeds I ordered...
More beautiful plumeria blossoms under grow lights
More proof that grow lights work! I planted this plumeria...
Seed Starting Lights at night?
In my area (Nova Scotia) I have time of day metering...
Pepper Leaf Problem
I am new to the forum, but have a question about a...
My indoor garden setup - any improvements?
This is my proposed setup for my indoor garden. I'm...
© 2015 Houzz Inc. Houzz® The new way to design your home™