10 Best Linkable Grow Light Bars of 2026
Ten linkable grow light bars compared by how many you can chain from one outlet (4 to 18), what is in the box, and per-bar switches, from Barrina and Monios-L to Spider Farmer.
By Ethan Cole
Updated November 2, 2026
Linkable grow light bars connect end to end with short cords or plug-in connectors, so one wall outlet powers a whole shelf or rack. The limit on how many you can chain varies a lot by brand, from 4 to 18 in this guide, and it decides how many outlets and power strips your setup needs.
This guide compares ten linkable bars by that limit and by what comes in the box. For a length-first view see 2 ft, 3 ft, and 4 ft grow lights.
Safety note: grow lights are plug-in electrical fixtures. Follow each maker’s minimum distance from leaves, keep drivers, timers, and plugs away from watering and misting unless the listing gives a water rating, and do not look straight into the LEDs at close range. Lights with UV or IR diodes are marked in the specs below. We describe what each maker lists; we do not promise growth results for any plant.
All Products Compared
| Product | Best For | Length | Power per Bar (Listed) | Max Linked (Listed) | Switches |
|---|---|---|---|---|---|
| Barrina T5 2 ft Magnetic, Yellow (8 Pack) | Best Overall | 2 ft | 10W | 16 | On each bar |
| Monios-L T8 2 ft (6 Pack) | Strong T8 Bars | 2 ft | 24W | 6 | Not listed |
| Spider Farmer T5 1 ft (4 Pack) | Longest Chain | 1 ft | 10W | 18 on 110V | Not listed |
| TYAGMAM T8 2 ft (4 Pack) | Value | 2 ft | 25W | 8 | Not listed |
| FREELICHT 4 ft (2 Pack) | Long Shelves | 4 ft | 40W | 4 | On each cord |
| APICDOM 4 ft | Single Slim Fixture | 4 ft | 30W | 4 | Inline switch |
| Maygrove T5 2 ft, Red Enhanced (4 Pack) | Switch per Bar, IP63 | 2 ft | 15W | Not stated | On each bar |
| VShape T8 1 ft (8 Pack) | Short Bars | 1 ft | 15W (from title) | 10 | Cord switches |
| Elaruslux T8 3 ft (6 Pack) | Timer on the Chain | 3 ft | 32W | 8 | Timer |
| VIVOSUN T5 1 ft (4 Pack) | Timer and Dimmer | 1 ft | 7W | Daisy chain, count not stated | Controller |
| Award | Product | WikiHomeLED Score About WikiHomeLED ScoreThe WikiHomeLED Score is our own rating from 0 to 10, calculated the same way for every product from Amazon buyer ratings, adjusted for how many ratings each product has. It is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | Price | |
|---|---|---|---|---|
| Best Overall |
Barrina T5 Grow Lights, 2FT 10W Plant Light
|
8.9/10 | $59.39 | Buy |
| Best Premium |
Monios-L Led Grow Lights for Indoor Plants Full
|
8.8/10 | $69.99 | Buy |
Spider Farmer T5 LED Grow Lights for Indoor
|
8.2/10 | $44.99 | Buy | |
| Best Value |
Grow Light, 2ft T8,100W(4 x 25W, 600W Equivalent)
|
8.4/10 | $39.99 | Buy |
| Best Budget |
FREELICHT 2Pack 4FT Grow Light for Indoor Plants
|
8.4/10 | $35.98 | Buy |
APICDOM LED Grow Light 4FT Full Spectrum
|
8.3/10 | $24.99 | Buy | |
Maygrove T5 Grow Lights for Indoor Plants 2FT
|
8.3/10 | $30.39 | Buy | |
Vshape T8 Grow Light for Indoor Plants, 1FT, 120W
|
8.2/10 | $65.99 | Buy | |
3FT Grow Lights for Indoor Plants,T8 5000K Full
|
8.1/10 | $79.99 | Buy | |
VIVOSUN T5 Grow Lights for Indoor Plants
|
8.2/10 | $29.74 | Buy |
Barrina T5 Grow Lights, 2FT 10W Plant Light
Monios-L Led Grow Lights for Indoor Plants Full
Spider Farmer T5 LED Grow Lights for Indoor
Grow Light, 2ft T8,100W(4 x 25W, 600W Equivalent)
FREELICHT 2Pack 4FT Grow Light for Indoor Plants
APICDOM LED Grow Light 4FT Full Spectrum
Maygrove T5 Grow Lights for Indoor Plants 2FT
Vshape T8 Grow Light for Indoor Plants, 1FT, 120W
3FT Grow Lights for Indoor Plants,T8 5000K Full
VIVOSUN T5 Grow Lights for Indoor Plants
Top 3 Linkable Grow Light Bars Reviewed
#1 Barrina T5 2 ft Magnetic Grow Lights, Yellow (8 Pack): Best Overall
Why We Picked It
Barrina’s T5 line scores 4.7 stars on about 6,600 ratings, pooled across its family, and links up to 16 bars in series, one of the longest chains here. This eight-pack has black covers with built-in magnets, and each 10-watt bar has its own switch.
With 4 power cords in the box, you can run one long chain or split the bars into separate groups on different shelves. Barrina also includes clips, ties, and magnetic bars with tape for non-steel surfaces.
Key Specifications
- Length: 2 ft (24.02 in listed)
- Power: 10W per bar, 80W for 8
- Color: warm full spectrum (yellow)
- Linking: up to 16
- Control: switch on each bar
- Mounting: magnets, clips, ties, magnetic bars with tape
| Pros | Cons |
|---|---|
|
|
Things to Consider
A switch on each bar matters on long chains: you can turn off bars over empty spots without unplugging the run.
Best For
Steel wire racks you plan to fill shelf by shelf.
Skip It If
Skip it if you want white light; Barrina sells 5000K versions of the same line.
Check current pricing and availability for the Barrina T5 2 ft Magnetic Grow Lights, Yellow (8 Pack).
#2 Monios-L T8 2 ft Grow Lights (6 Pack): Strong T8 Bars
Why We Picked It
Monios-L scores 4.7 stars on about 2,800 ratings. The 24-watt bars have double rows of LEDs in V-shaped housings, and up to 6 connect with seamless connectors or connector cables.
Six is a shorter chain than Barrina’s, but each bar carries more than twice the wattage, so six bars cover a lot of shelf.
Key Specifications
- Length: 2 ft
- Power: 24W per bar, 144W for 6
- Linking: up to 6
- Color: 2900K warm (listed)
- Reflector: V-shaped housing
- Warranty: 24 months
| Pros | Cons |
|---|---|
|
|
Things to Consider
Plan a second outlet if you want more than six bars.
Best For
One or two shelves where you want fewer, stronger bars.
Skip It If
Skip it if you want to run a long rack from one outlet.
Check current pricing and availability for the Monios-L T8 2 ft Grow Lights (6 Pack).
#3 Spider Farmer T5 1 ft Grow Lights (4 Pack): Longest Chain
Why We Picked It
Spider Farmer lists the longest chain in this guide: up to 18 bars on 110V. Each 10-watt bar mixes white, warm white, and 660nm red, and sits under an IP65 clear cover.
It scores 4.4 stars on about 50 ratings, a smaller base than the bars above. A magnet, nails, clips, and cable ties are included.
Key Specifications
- Length: 1 ft
- Power: 10W per bar, 40W for 4
- Spectrum: 5000 to 5500K, 3000 to 3500K, 660nm
- Linking: up to 18 on 110V
- Moisture: IP65 cover (listed)
- Efficiency: 143 lm/W, PPE 2.2 or higher (listed)
| Pros | Cons |
|---|---|
|
|
Things to Consider
Eighteen 1-foot bars is still only 180 watts, so the long chain stays within a single household circuit easily.
Best For
Long, narrow shelves and propagation racks.
Skip It If
Skip it if you want a large rating history.
Check current pricing and availability for the Spider Farmer T5 1 ft Grow Lights (4 Pack).
How to Choose Linkable Grow Light Bars
Check the Chain Limit
Count every bar you plan to run from one plug and compare it with the listed limit. Exceeding it can overload the first cord. When in doubt, split the run across two power cords.
Do Not Mix Brands on One Chain
Connectors look similar but are not standardized. Link only bars from the same brand and line, and note Barrina’s warning that newer bars need new cords to join older ones.
Switch per Bar
Barrina and Maygrove put a switch on every bar, which lets you darken empty spots without breaking the chain.
Cords and Outlets
Look at the cord lengths in the box. Long jumper cords (Barrina 39 in, Elaruslux 47 in) let one chain span shelves; short connectors only join bars end to end.
How We Evaluate Linkable Grow Light Bars
We did not grow plants under these lights. We compared manufacturer specifications and Amazon listing details, and ranked products by the WikiHomeLED Score, which adjusts the Amazon star rating for the number of ratings (ratings checked November 2, 2026). To qualify, a product had to be an LED grow light bar that the maker lists as linkable, with at least 20 ratings and a rating of 4.1 stars or higher, one listing per product family. PPF, PPFD, lumen, and wattage figures are as published by each seller and are not our measurements. The full method is on our How We Review page. Maximum chain counts are as listed by each seller.
Frequently Asked Questions
How many grow light bars can I link together?
It depends on the brand: 4 for FREELICHT and APICDOM, 6 for Monios-L, 8 for TYAGMAM and Elaruslux, 10 for VShape, 16 for Barrina T5, and 18 for Spider Farmer on 110V.
Can I link different brands of grow lights?
No. Connectors are not standardized, and mixing brands can damage the lights. Use separate power cords for each brand.
Does linking bars reduce brightness?
Makers do not list any drop within the stated limit. Staying within the limit is what matters.
Can I put a timer on a linked chain?
Yes. Plug the first bar’s power cord into an outlet timer and the whole chain follows it.
Final Verdict
The Barrina T5 2 ft magnetic eight-pack is the most flexible linkable set: up to 16 bars, a switch on each, and magnets for steel racks. Monios-L gives fewer, stronger bars, and Spider Farmer lists the longest chain at 18. For 4-foot shelves, FREELICHT and APICDOM link up to four fixtures each.
About the author
Ethan Cole leads research and editing at WikiHomeLED, comparing LED lighting for the home through manufacturer specs, manuals, safety listings and owner feedback. Every product is scored against the criteria on our How We Review page, and picks are updated when models change.