hps 600w

hi all. got my 6oow hps grow light today well happy with it.. did'nt realise how bright these lights are..

i have a 5 questions..

1, can this light be used for the veg stage or is it to much.
2, it's the metal halide lights that are the expensive ones to run am i correct in saying this..
3, hps is that fairly cheap to run
4, i have just one light in my attic will the eye in the sky detect it, do i have more chance of gettig busted doing it this way
5, as im growing with 600w of hps how far should i keep the light from the plants

thanks folks apresssshhhhh

scooby doo said:

1, can this light be used for the veg stage or is it to much.
2, it's the metal halide lights that are the expensive ones to run am i correct in saying this..
3, hps is that fairly cheap to run

Click to expand...

1) It can be used in Veg, but you won't get as tight internode spacing as with a Metal Halide, although that does depend somewhat on what HPS bulb you have. You also need to keep the light a fair distance from the plants.

2) No you're not.

3) Nope, wattage for wattage both HPS and MH are exactly the same cost to run.

Flourescents: proximimty
400w HPS: 1 foot
600w HPS: 1.5 foot
1000w HPS: 2 foot

HPS (High Pressure Sodium) lamps can burn in any orientation.

MH (Metal Halide) lamps come in three basic types:

*Base up (BU), which must be operated in the base up position.
*Horizontal (HOR), must be operated in the horizontal position.
*Universal (U), which may be operated in any position.


(HPS) HIGH-PRESSURE SODIUM LAMP - High-pressure sodium lamps operate by igniting sodium, mercury and xenon gases within a sealed ceramic arc tube. Sodium lamps emit light energy in the yellow/red/orange regions of the spectrum; the red spectrum stimulates flowering and fruit production. Many indoor gardeners switch to sodium lamps when it is time to induce flowering or fruiting of their plants.


(MH) METAL HALIDE LAMP - A high-intensity-discharge lamp in which the light is produced by arcing electricity through a mixture of metal halides. The light produced by metal halide lamps is in the white-blue spectrum, which encourages vegetative growth and "bushiness" while discouraging upward growth. This is the bulb to use in the first, vegetative phase of plant growth.

cheers babygro & mogie much needed advice

Thanks for posting, i enjoyed reading what u wrote and the feed back u got. I have a closet im growing in so i wanted to know if i should use a 400whps or a 600w. Rougly 2ft6inches by 5 feet and 6ft tall. I'm not trying to thread jack so if u can just send me a private message it would be much appreciated.