HLG vs Spider Farmer comes down to premium versus value. Horticulture Lighting Group, or HLG, is a US brand known for high listed efficiency, long warranties and a higher price, while Spider Farmer is a popular value brand with boards and bars that cost less for similar tent sizes. On paper, HLG’s top fixtures list higher efficiency, and Spider Farmer’s G series closes much of the gap. If you want the most light per watt and plan to grow for many years, HLG is the stronger fit on paper. If you want solid performance on a tighter budget, Spider Farmer makes a lot of sense. Either way, good genetics from our indoor seeds will make the most of your light. This guide is for adults 21 and older growing where home cultivation is legal.

This is a spec based review. It draws on each maker’s published specs and common grower feedback. We did not run our own test grow, and Kind Seed Co is not affiliated with HLG or Spider Farmer. Always check current specs, since both brands update their lineups.

HLG vs Spider Farmer at a glance

Feature	HLG	Spider Farmer
Market position	Premium	Value
Board lights	350 Diablo and others	SF series
Bar lights	Scorpion, Tomahawk and others	SE and G series
Highest listed efficiency we found	3.06 umol/J (Scorpion Diablo X)	2.9 umol/J (G1000W)
Warranty	5 years listed on fixtures like the 350 Diablo	5 years listed
App control	Check model	G series, per maker

Small tent matchup: 350 Diablo vs SF2000

For 2×4 and 3×3 tents, the HLG 350 Diablo and the Spider Farmer SF2000 are common picks.

According to HLG, the 350 Diablo draws 330 W, puts out 950 or more micromoles per second and lists 2.80 micromoles per joule, with about 3×5 flowering coverage at 15 inches. According to Spider Farmer, the SF2000 draws 200 W at 2.7 micromoles per joule. That means the HLG puts out more total light, and you can dim it to match a smaller tent. The SF2000 is a lower power option that may suit a 2×3 or 2×4 tent without dimming.

Diode type is a common question. Current SF2000 listings mention Bridgelux diodes, while older versions used Samsung LM301B. Check the version you are buying.

Large tent matchup: Scorpion Diablo X vs G series

For 5×5 and larger tents, HLG lists the Scorpion Diablo X at 715 W, 2126 PPF and 3.06 micromoles per joule. Spider Farmer lists the G1000W at 1000 W and 2.9 micromoles per joule for 5×5 tents, with the G4500 at 320 W and the G5000 at 480 W, both at 2.85. The HLG has a higher listed efficiency, while the G series offers app control on supported models and a lower cost.

The SF4000, a 450 W board from Spider Farmer at a listed 2.7, is another common 4×4 and 5×5 option for growers who prefer a board.

What higher efficiency means for you

Efficiency is light out per watt in. A light with higher listed efficiency can deliver the same light at lower power, which means less heat and lower bills. But the savings only show up if you run the lights for long enough. Over many grows, a more efficient light can pay back part of its higher price in power savings. For one or two grows, the difference is smaller. Our guide to grow light electricity cost helps you do the math for your power rate.

Efficiency also affects heat. Less wasted power means less heat in the tent, which can make summer grows easier. See grow light heat management.

Build, warranty and support

HLG lists a 5 year warranty on fixtures like the 350 Diablo, plus a universal 120 to 277 V driver. Spider Farmer also lists a 5 year warranty on its lights, though coverage can depend on the seller, so keep your receipt. Both brands have large user communities, which makes it easy to find setup tips.

Boards or bars?

Both brands make each style. Boards are simple and compact. Bars spread light more evenly and run cooler at the diodes. For 4×4 and larger tents, many growers lean toward bars from either brand. Read quantum board vs bar LED and grow light bar spacing.

Which should you choose?

Your situation	Lean toward	Why
First grow, tight budget	Spider Farmer	Lower cost for a solid board
Long term hobby, want top efficiency	HLG	Higher listed efficiency and premium build
2×4 or 3×3 tent	Either, dim to fit	Compare 350 Diablo and SF2000
5×5 tent	HLG Scorpion or Spider Farmer G series	Compare power, coverage and cost
Want app control	Spider Farmer G series	Listed app control

Getting the most from either light

1. Hang at the maker’s height for each stage.
2. Dim for seedlings and early veg. See cannabis seedling light schedule.
3. Ramp up in flower. See when to increase light intensity in flowering.
4. Keep the canopy even with training.
5. Measure. A PPFD map shows what your plants actually receive.
6. Watch for stress. Pale tops mean too much light. See light bleaching cannabis.

Buying used or older models

Both brands have been around long enough that older models show up second hand. A used light can be a good deal, but check a few things first. Make sure the model is still supported, since HLG’s 650R and original Scorpion Diablo are reported to be discontinued, and older Spider Farmer boards may use different diodes from today’s versions. Ask how many hours the light has run, look for damaged diodes or burned spots, and test the dimmer through its full range. Warranty usually applies only to the first buyer or needs a receipt, so assume a used light has no warranty unless the seller can prove otherwise.

LEDs also lose output slowly over time. A light with several years of use may not match its original spec sheet. Read grow light lumen maintenance and when to replace grow lights before you buy.

Common questions growers ask before buying

Many growers wonder whether a premium light will give a bigger harvest. Light is one factor among many. Genetics, climate, nutrients, watering and your own skill all matter. A premium light in a tent with poor airflow will not beat a value light in a well run tent. Spend where your setup is weakest. If your tent struggles with heat, fix ventilation first. If your plants are healthy but small, then a stronger light may be the right upgrade.

Others ask whether diode brand matters most. It is one piece. Driver quality, how hard diodes are pushed, heat sinking and diode bins all affect real output. Read grow light diode binning for more.

Our take

On paper, HLG leads on listed efficiency and premium build, while Spider Farmer leads on value. Both are proven brands among home growers. Choose based on your budget, how long you plan to grow and the size of your space. For a broader look at light types, read choose the right LED lights for your cannabis grow.

Frequently asked questions

Is HLG better than Spider Farmer?

On paper, HLG’s top fixtures list higher efficiency and a premium build. Spider Farmer costs less. Better depends on your budget and goals.

Which is more efficient?

The highest listed figures we found were 3.06 micromoles per joule for the HLG Scorpion Diablo X and 2.9 for the Spider Farmer G1000W.

What is the HLG equivalent of the Spider Farmer SF2000?

The HLG 350 Diablo is a common comparison for small tents, though it draws more power and lists more output.

Do both brands make bar lights?

Yes. HLG has the Scorpion and Tomahawk lines, and Spider Farmer has the SE and G series.

Pick your light, then your strain

Once your light is set, choose genetics to match from our indoor seeds or browse the full Kind Seed Co shop. Kind Seed Co sells only to adults 21 and older. Always follow the home grow laws where you live.