In response to the general question, can you use an HPS bulb for veg, the answer is yes. Basically you can use just about any light out there for any stage of growth, the real question is how well do each bulb work for veg.

How close should HPS light be to plants?

between 5 and 8 feet
HPS lights should not be placed inches from the plants, as you would place fluorescent lights; you should set HPS lamps higher, generally between 5 and 8 feet from the plants. Whether you have a reflector with your HPS light makes a difference for how close you can keep it from the plants.

What are HPS lights?

What is a High Pressure Sodium Light? High pressure sodium vapor (HPS) lights, similar to LPS lights, are a specific type of gas- discharge light (also known as a high intensity discharge, HID or arc light). The principal difference between low and high pressure sodium lights is the operating pressure inside the lamp.

Is a 400 watt HPS enough for this size tent?

A 400w hps is not enough light for that size space, I have a 400 in a 2×4 area, a 1000 watt would be perfect, or 2 400w lights… The buds will be thin and airy with that little light… I have a Homebox S Grow Tent (i think like 2′ x 2′ x 5′ or a lil bigger) and I use a 400w HPS.

How many ounces does a 400400w grow Setup Hold?

400W HPS Grow Setup (For Hobbyist Growers) Average Yields: 7-14 ounces Recommended 2-6 plants Grow space is 3’x3’x6′ or 4’x4’x6′ (bare minimum is 2’x4’x6′)

What size HPS do I need for growing cannabis?

When you’re just starting to foray into the world of larger grow lights, a 400W HPS is an appropriate first light to try. It’s energy efficient, relatively cheap, and makes for large colas than stretch far down the plant.

What size LED bulb do I need for my grow tent?

Sun System Digital 400 Complete – Get a 400W MH bulb and 400W HPS bulb with this setup 4’x4’x6.5′ (recommended) – an example is the CoolGrows 48”x48”x80” Grow Tent – plenty of room to grow! A quality 6″ exhaust fan works best.