- 20%
2026 Newest Version Spider Farmer® SF4000 450W Full Spectrum Dimmable LED Grow Light for 120x120cm Coverage
Original price was: $549.99.$439.99Current price is: $439.99.
2026 Updated Version
The SF4000 has been upgraded to Advanced Bridgelux 3030 high-efficiency LEDs while maintaining the same output, uniformity, and reliable performance.
PPE: 2.75 µmol/J
Coverage: 120x120cm
Grow Tent Compatible: 120X120cm
Recommended Fan Size: 6-Inch
Frequently Bought Together
Top Features
- BETTER LIGHT PENETRATION: The 2026 New SF4000 features upgraded high-performance Bridgelux LEDs, delivering strong, even light output with excellent canopy penetration. With an increased diode count and optimized layout, light efficacy, PPF output, and uniformity remain consistent with the previous Samsung-based version—helping you achieve reliable yields.
- HIGH EFFICIENCY & PREMIUM U.S. BRAND DIODES: The SF Series is engineering-upgraded with high-performance Bridgelux diodes, increasing diode count so each LED operates under lower load for reduced stress, improved thermal stability, and extended lifespan. Veg footprint is 5 x 5 ft, Flowering footprint is 4 x 4 ft.
- NEW DIODES ARRANGEMENT & DIMMING DESIGN: Upgraded SF4000 growing lights. The diode arrangement gathered at the edge makes the PPFD more uniform, and the dimming knob be adjusted the light intensity at liberty. Multi-light Connection with unified dimming is especially beneficial for large area of indoor plant growing and commercial planting.
- IDEAL FOR ALL GROWTH STAGES: With excellent full spectrum light – white, blue, red ,and IR (3000K, 5000K, 660nm ,and IR 760nm), the 3000K diodes provide more reddish light and the 5000K diodes provide more blueish light. The 660nm red and IR light is especially useful during blooming stages as it speeds up flowering time and boosts yields. Turn your seeds into your own supply!
- WELL MADE & SOLID CONSTRUCTION: The SF4000 produces no fan noise, comes equipped with a branded high safety performance driver and good quality waterproofing. The updated aluminum material is thick and sturdy and doesn’t put out a tremendous amount of heat while also providing high-quality protective covers for cables and arriving in user-friendly packaging. The quality components mean the light lasts longer and saves you money.
- As a professional manufacturer of Led grow lights for more than 10 years. Spider Farmer has always insisted on creating more efficient, suitable and high-quality home planting equipment for plant growth, and strives to become a trusted partner for every grower! You will get a Spider Farmer SF4000 grow light, an instruction manual, a pair of silver hooks, and a pair of black hangers.
- Package includes:
1 x SF4000 LED Grow Light
2 x Stainless Steel Hanger Hook
4 x YoYo
1 x User Manual for Installation
1 x 2 meters Power Cord
Warm Tips:
1. Do NOT touch while in operation.
2. To prevent eye damage, avoid looking directly at the LEDs.
3. In summer or other hot environments, please use a cooling fan to keep a suitable temperature for your plants.
WHICH SF LIGHT IS RIGHT FOR YOU?
SF1000D | SF1000 | SF2000 | SF2000Pro | SF4000 | SF7000 | |
|---|---|---|---|---|---|---|
| LED | Bridgelux | Bridgelux | Bridgelux | Bridgelux | Bridgelux | SAMSUNG LM301B |
| Wattage | 100W ±5% @AC120-277V | 100W±5%@AC100V-277V | 200W ±5% @AC100-277V | 200W ±5% @AC100-277V | 450W ±5% @AC100-277V | 650W ±5% @AC100V-277V |
| PPF | 219.3 μmol/S | 249.2umol/S | 608.5umol/S | 599.9umol/S | 1171 μmol/S | 1786Umol/S |
| PPE | 2.5 µmol/J | 2.5 µmol/J | 2.7 µmol/J | 2.7 µmol/J | 2.7 µmol/J | 2.8 µmol/J |
| Coverage | 60×60cm | 60×60cm | 70×140cm | 90×90cm | 120×120cm | 150×150cm |
| Dimmable | √ | √ | √ | √ | √ | √ |
| Buy Now | Buy Now | Buy Now | Buy Now | Buy Now | Buy Now |
| Spider Farmer SF4000 LED Grow Light Specification | |
|---|---|
| Product Identification | |
| Brand | Spider Farmer |
| Product Model | SF4000 |
| Product Series | SF Series |
| LED | Bridgelux |
| Product Dimensions | |
| Light Size | 64.8 x 53.6 x 5.0 cm / 25.51 × 21.10 × 1.97 Inch |
| Package Size | 70.5 x 60.0 x 12.0 cm / 27.76 × 23.62 × 4.72 Inch |
| Core Coverage | 4x4 ft. |
| Max Coverage | 5x5 ft. |
| Net Weight | 6.38 kg |
| Gross Weight | 8.57 kg |
| Grow Tent Compatible | 4'x4' |
| Recommended Fan Size | 6-Inch |
| Product Technical Specifications | |
| PPF | 1171 μmol/S@AC120V 1170 μmol/S@AC240V 1170 μmol/S@AC277V |
| PPE | 2.7 µmol/J |
| Spectrum | 660-665nm,730-740nm,2800-3000k, 4800-5000k |
| Operating Temperature | -20-35℃(-4-95℉) |
| Input Voltage | AC100-277V |
| Lighting Control Protocols | 0-10V |
| Frequency | 50-60HZ |
| Power Draw | 450W ±5% @AC100-277V |
| Product Guide | |
| Users Manual |  PDF |
| Lifespan | 50,000 H |
| Warranty | 5 Years |
| Product Package | |
| Package Included | 1x SF4000 LED Grow Light (with dimmer box) |
| 1x Power Cord | |
| 4x YOYO Hanger Hook | |
| 1 x User Manual | |
28 reviews for 2026 Newest Version Spider Farmer® SF4000 450W Full Spectrum Dimmable LED Grow Light for 120x120cm Coverage
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Anonymous (verified owner) –
trying it out
sarah (verified owner) –
Very happy. Quick discreet delivery.
Anonymous (verified owner) –
Great product, prompt delivery, a+
Anonymous (verified owner) –
Love the new light
Anonymous (verified owner) –
As usual a pleasant experience. Quality products at a good price.
Pete (verified owner) –
Excellent technology and quality
Anonymous (verified owner) –
Quick delivery thanks guys
timothy (verified owner) –
great product came on time just yet to try it.
Paul (verified owner) –
Great product and fast delivery..thanks guys👍
Verified Buyer (verified owner) –
Amazing
phil andrews (verified owner) –
Delivery was fine.
But i was extremely disappointed to learn that on checking your website 2 days after I placed my order, you had a sale that reduced my cost of $554 per unit to 399.99 per unit. Even with the freight charge of $83.06, my total bill would have been $2,718.30 instead of my actual cost of $3.323.94.
Therefore had I ordered 2 days later than I did, I would have saved $605.64
Aco Blazeski (verified owner) –
Just as described and really wick shipping thank you
Paul (verified owner) –
Great unit works fantastic
Mark (verified owner) –
Very impressed how quick I received it can’t wait to try it out
Anonymous (verified owner) –
excellent product and sevice
Bobby (verified owner) –
Very fast shipping and the light was so easy to install. My tomatoes doubled their growth in just two days! Love these lights
Andrew (verified owner) –
Ordered Thursday _ received in under a week to Perth in good condition _ top service.
Asheley (verified owner) –
Quick shipping and prompt replies with the spider farmer support team 🙂
Ken (verified owner) –
It’s a gun
John O’Day (verified owner) –
very happy seems to do everything it claimed. Packaging was damaged on a corner and had been repaired with tape, no damage to light
Jason (verified owner) –
Fantastic product at an unbeatable price with super speedy delivery
Wayne B. (verified owner) –
Install was a breeze, she looks awesome and blinding on 25% power in a 4×4!! Cant wait to see the results ion a few months with this awesome light.
John Davies –
Arrived promptly and working fine
Kyle –
Quality product + quick delivery = winning!! 🙂
DISCOUNT CODE:aubf
Scott Stalley –
Spider farmer SF4000 450W LED Grow Light Full Spectrum Dimming Daisy Chain
Duane Kendall –
I recently ordered the sf4000 and 4×4 tent I love them I would recommend Spider 🕷 Farmer to everyone
Ronald Monaghan –
Looking forward to growing with this light .
Marcus Wilson –
Spider farmer SF4000 LED Grow Light Samsung LM301B Hydroponic