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growing cannabis under fluorescent lights

Growing cannabis under fluorescent lights

Fluorescent grow lights come in many different shapes and sizes, from twisty bulbs to long tubes. Fluorescents are popular because they make efficient and pleasant lighting for humans, and also work great for herb gardens and other types of low-key indoor gardening without using a lot of electricity.

Example of MH/HPS Setups That Yield 1-5 Ounces/Month

Pros of Fluorescents

Growing cannabis under fluorescent lights

This warm fluorescent bulb is designed for flowering plants, potentially negating the problem that often occurs with CFLs during the flowering stage. Most growers use this bulb with a reflector to ensure the best distribution of light.

T5s, meanwhile, get their name from their tube shape and 5/8” diameter. T5 bulbs usually come in a set, where multiple tubes are placed side by side in a panel. As a result of this set-up, T5s provide more even light coverage. You’ll need to hang T5s from a fixture, but don’t worry, as they’re often very cool and won’t cause heat damage.

For a relatively cheap price, the Hydrofarm FLC125W light provides excellent light quality. It can be placed both horizontally and vertically. The bulb provides 125-watt full-spectrum light in a warm tone.

2. Apollo Horticulture 250-Watt CFL Compact Fluorescent Grow Light Bulb System – 6400K

Fluorescent Lamp Cons

Hydrofarm is back again with the Fluorowing Compact Fluorescent System. This model is designed for a small grow space of 2’ x 2’, with 125-watt bulbs. You will need to add additional reflective sheets for maximum efficacy, but this light is still decent for small spaces.

5 Best Fluorescent Lamps for Growers in 2022

There is much debate about what lighting type is the best for marijuana. Fluorescent lighting is a commonly used form of lighting, but you still need to learn which bulbs work best. In this guide, we cover the pros and cons of fluorescent lamps and explain where you can pick up the best fluorescent light for your grow space.

So, there you have it. These are our five top picks for fluorescent lighting that will show some love to your cannabis plants. Make sure to do your research, though, as there are hundreds of fluorescent lamps available on the market.

Growing cannabis under fluorescent lights

Dear Dan,
Just wondering if you would use a T5 to flower a pot plant? – Raymond M.

T5 Fluorescent lights over motherplants.

Dear Raymond,
Yes, you can use a T5 fluorescent light to flower a pot plant. The benefits of using this type of lighting is the lack of heat that they generate. Because they’re not super-warm, you can place your plant tops within just a few inches of the light. The disadvantage of flowering under fluorescent lighting is the lack of light intensity and penetration. This makes the Screen of Green (ScrOG) method ideal as you can train the flowering tops to create a level canopy close enough to the light.

My recommendation, however, is to grow under High Intensity Discharge (HID) lighting such as High-Pressure Sodium (HPS) or (Metal Halide) systems. Although they run much hotter and use more electricity, they produce plenty of light for plants to thrive and build thicker flowers. If you’re interested in a bigger yield from increased light and can handle the added heat, HID lighting is ideal for indoor marijuana production.