Can I use metal halide bulb for flowering?
This means they’re great for making your plant produce dense and lush canopies with very little internodal spaces. They’re perfect for growing all kinds of greens like lettuce, spinach, peppers, tomatoes, flowering crops in the vegetative stage and many others. MH bulbs are also very good at stopping stretching.
How far should Metal Halide lights be from plants?
7 to 18 inches away
A 400-Watt metal halide grow light should be mounted at least 7 to 18 inches away from the tops of your plants and can light an area measuring 16 square feet. Covering a 25 square foot area, a 600-Watt MH grow light should be at least 10 to 27 inches above your plants.
How much heat does a Metal Halide bulb produce?
When fully lit, the Metal Halide lamp will reach a temperature of 2000 degrees Fahrenheit and operates at a vapour pressure between 70 and 90 pounds per square inch.
Is HPS still the best?
HPS is better in some situations – HPS is better than LEDs when it’s cold because they run hotter yet plants can handle cooler temperatures. Plants under LEDs grow slowly in the cold, while plants under HPS will still grow fast even when the temperature drops.
How much light is too much during flowering?
Cannabis needs about 18-24 hours of light during the vegetative stage and 12 hours of light during the flowering stage. Many people forget to adjust the height of the lights as the plants grow bigger and end up with burnt leaves.
Do you need more light during flowering?
Once the light cycle is changed to 12 hours, adding more light to the plants helps increase the flowers and yield.
Can I replace metal halide with high pressure sodium?
The primary visual difference between them is that metal halide light is white and the light emitted from a High Pressure Sodium bulb is amber orange. These bulbs cannot be interchanged without changing their ballast, the regulating element in all light bulbs.
How high should 1000 Watt HPS be from plants?
The stronger the light, the further you’ll need to hang it, so if you have a 1000w you may want to hang it at least 15″ (38cm) away. Depending on the strength of your light, you won’t want to go higher than 30 inches (76cm) above your plants.
Is metal halide good for growing?
Metal Halide (MH) lamps typically emit a white colored light. Traditionally Metal Halide lamps have been used by indoor growers during the vegetative stage of plant growth. They are ideal for growing plants up to the flowering and fruit production stages because they mimic the spring/early summer seasonal sun.
Is LED or HPS better for flowering?
Essentially, we’re talking about different technologies and calling them both “HPS.” LEDs are much the same. Though they’re generally more efficient than HPS (with some clocking 2.8 µmol/joule), some LEDs are less efficient than high-quality HPS fixtures, and they give you less light.
How do you get big yields?
For higher yields indoor, you want your plants to grow wide rather than tall. You want a bushier plant so more buds have access to direct light, rather than a long, lanky plant with several buds hidden under a canopy. By transferring your plants to larger containers, you can encourage more outward expansion.