Information about the best grow lights for indoor cannabis growing. Pictures, videos, specifications, and more! Live chat for help!

Leaving Grow Lights On For 24 Hours: Is it Recommended?

Indoor cannabis growers are always looking for ways to increase the health, growth, and output of crops. One method many growers use to accomplish this is to allow grow lights to stay on 24 hours a day. But is that the best option for your plants? It's not recommended to leave your grow light running for 24 hours straight. Twenty four hours of light can prevent a plant from effectively carrying out the respiration process. Long…

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Understanding Grow Light PAR, PPFD, Wattage and DLI (2023)

It's important to understand the meaning of PPFD if you're growing cannabis. You should also understand how the Daily Light Integral, the PAR light spectrum, and wattage play into growing cannabis plants. By understanding these phrases you'll be able to purchase a LED grow light that's appropriate for your plants' needs and the amount of grow space you're using. Keep reading if you want to know... How much PPFD for seedlings? How much PPFD for Veg?…

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Determine Proper Grow Light Distance Above Plants - Based On Science!

The most frequent question I'm asked by indoor growers is what distance above plants to hang a grow light. The short answer is "it depends," but I lay out the science of it below. Whether you're growing cannabis or any other plant that provides fruit or vegetables, the plants require a certain amount of light per day. The amount of light received is affected by the grow light's distance above plants. Science says when you double…

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Spider Farmer SE Series Grow Lights: How Do They Compare? (2023)

Spider Farmer recently released the SE Series grow lights. These are bar style LED grow lights designed to grow cannabis in 3x3 to 5x5 feet of space from seedlings to maturity. I own Spider Farmer grow lights and I know the high quality and value this brand produces.  Sizes & Design Comparison: Right now there are three sizes available as you can see at the top of the page. The Spider Farmer SE-3000 is the first…

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Spider Farmer SF-7000: Why You Need This Grow Light In Your Grow Tent

The Spider Farmer SF-7000 is a powerful 650 watt LED grow light that offers a lot of value. If you have a 4x4 foot to 6x6 foot grow area, this grow light could be a good choice for you. Spider Farmer grow lights are relatively new to the grow scene, but they've been a hit ever since they became available. You can check out their full lineup and my personal review of the smaller SF-2000 here.…

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The Best Grow Lights for a 3×3 Grow Tent - Pictures, Specs, and More

What are the best grow light options for a 3x3 grow tent? Consider one of the following options: A Viparspectra P1500 (budget), A Mars Hydro TSW 2000 (performance), a Spider Farmer SE-3000 (Fancy), or a 250 watt HPS grow light (HPS option). The most important factors to consider when choosing a grow light for a 3x3 foot grow space are the light intensity and uniform coverage area of the lights. If you pick the wrong grow…

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HLG 650R Grow Light - Test and Comparison (2023 Update)

Horticulture Lighting Group (HLG) has released their new flagship quantum board LED grow light. I bought one for myself and I'm writing to answer all of your questions. The HLG 650R is a 630 watt LED grow light designed for full cycle cannabis growth. This grow light uses the newest Samsung LM301H LEDs, and emits stronger light intensity than the HLG 600 models. Below I'll lay out detailed pictures, specifications, comparisons, and where you can buy…

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Viparspectra VP Series Grow Lights - VP1000 & VP2000 Comparison

Viparspectra released their new quantum style LED grow lights. The VP Series VP1000 and VP2000 models are a nice upgrade from previous Viparspectra grow light models. The previous Viparspectra grow lights were a bit weak for growing cannabis unless you bought the more expensive models. The Viparspectra Pro Series feature stronger light than the previous models, which makes these a much more attractive option for cannabis growers looking for a familiar brand to grow with. Let's…

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Viparspectra Pro Series Grow Lights - Test & Comparison

Viparspectra released their new quantum style LED grow lights called the Pro Series. This series of grow lights consists of five models that range in coverage area from 2x2 feet to 2x6 feet. are a nice upgrade from previous Viparspectra grow light models. The previous Viparspectra grow lights were a bit weak for growing cannabis unless you bought the more expensive models. The Viparspectra Pro Series feature stronger light than the previous models, which makes these…

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Mars Hydro TSL-2000 Test and Overview

Are you looking for the perfect grow light to grow cannabis in a 2x4 foot grow tent? Or even for a 4x4 foot grow tent? I decided to purchase the Mars Hydro TSL-2000 to see how it stacks up to competition. After testing the Mars Hydro TSL-2000 and comparing it to other grow lights, I think it's the best bang for the buck for growing cannabis or other flowering plants in a 2 by 4 foot…

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