However, because of their low price, if you’re new to indoor growing and not sure how often you’ll do it, you may want to invest in an inexpensive HID light at first to test the water.
When growing outdoors you can harness the power of the sun, but in an indoor environment, sunlight is mimicked through the use of grow light bulbs, which aim to display the same spectrum of light as the sun.
These HID bulbs usually contain sodium, mercury, and xenon, and produce a yellow/orange light, and are commonly used for flowering plants. Some growers will start plants under MH bulbs and switch them to HPSs when plants go into the flowering stage, using the same hood. These lights also require a ballast.
HID lights for growing marijuana
You can find HID reflector hoods, as well as MH and HPS bulbs at any local grow shop.
HID (high-intensity discharge) is an umbrella term under which MH and HPS bulbs fall, which we’ll discuss more below. These types of lamps have a hood that reflects light and bulbs that are enclosed capsules containing a gas, as opposed to bulbs you’d find in your house, which have a filament that heats up.
Factors to consider before buying a grow light
The typical homegrower will only need one or two lights. Most states limit grow amounts to 6 or 12 plants, and one or two lights should be plenty for that. If you plan on running two separate rooms, one for vegetative plants and one for flowering plants, you’ll need two lights.
There are daylight bulbs and warm white bulbs; the former better for vegetative growth, and the latter for flowering.
T5 grow lights are one of the most easily available types of grow lights and are used to grow many different types of plants. As a result, they’re available in many garden and home improvement stores.
Fluorescents are a great choice for clones, young plants, supplemental lighting and can save you money on electricity in the vegetative stage compared to using high power lights when plants are too young to use it all anyway. They can also be used to flower plants in spaces that are shorter than what’s possible with other grow lights (aka ‘stealth growing’).
More Light = Bigger Yields!
(up to a point, it is possible to give your plant too much light!)
2.) High Intensity Discharge (HID) Grow Lights
The type you choose is really up to you and the size of your grow room – T5s might work better in a slightly larger space. Either way, fluorescent bulbs are not as powerful as other lighting types. As a result, they are best for small grow rooms with only a few plants. Cultivating on a larger scale requires the use of HIDs or LEDs, for example.
Other Types of Lights
Although this model doesn’t offer vertical positioning like the EnviroGro FLT24, it does offer two modes of light. Switching off some of the tubes allows for dimmer light that works better for times when you need it a little darker.
4. Durolux T5 Grow Light (4ft) Dl844S Ho Fluorescent Hydroponic Fixture
Here are WayofLeaf’s top picks for fluorescent grow lamps. These should suit all budgets and grow spaces, no matter what you need.