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Grower's Choice
Grower's Choice ROI-FF 650W LED Grow Light – Full-Phase Flowering, 1950 µmol/s, 4x4 Coverage
- Regular price
- $1,099.00
- Regular price
- $1,099.00
✅ Order by 12:00 PM EST and processing starts the same day (ships within 1–2 business days). Free, insured US shipping — delivery in 4–7 business days. Oversized items ship via LTL freight and we coordinate delivery with you by phone.
🏔️ OffGrid Horizon is family-owned & off-grid obsessed. Read our story →
Shipping: how fast & how it works
Shipping: how fast & how it works
Free standard shipping on every US order — no shipping charges at checkout, no hidden fees, and every shipment is insured against loss or damage.
- Processing: 1–2 business days. Order before 12:00 PM EST and processing begins the same day.
- Delivery: 4–7 business days via USPS, UPS or FedEx. Tracking is emailed the moment your order ships.
- Large items (solar kits, batteries, shelters): delivered by LTL freight carriers such as FedEx Freight, Old Dominion or XPO. The carrier calls ahead to schedule a delivery window — please inspect the pallet and note any damage on the delivery receipt before signing, and we’ll take care of the rest.
Questions about delivery to your location? Call (302) 496-3554 (Mon–Fri, 9am–4pm EST) — we’re happy to check before you order.
What is your Return Policy?
What is your Return Policy?
At OffGrid Horizon, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:
1. Return Window
You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.
2. Who Pays for Return Shipping?
- If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost — and you’ll receive a full 100% refund or replacement, including any original shipping costs.
- If you’re returning an item because you changed your mind, you’ll be responsible for return shipping, and a 25% restocking fee applies.
3. Damaged or Defective Items
Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement.
4. Changed Your Mind?
If you no longer want the item, you can return it within 30 days — as long as it’s unused, unopened, in its original packaging, and in resellable condition.
5. Refund Processing
Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.
How to start a return: email sales@offgridhorizon.com or call (302) 496-3554 (Mon–Fri, 9am–4pm EST) with your order number — we’ll send return instructions and your RMA right away.
Product Description
The Grower's Choice ROI-FF-650 is a full-phase flowering LED grow light engineered for commercial and serious home cultivation. Drawing 650 watts and delivering 1950 µmol/s of photosynthetic photon flux at 3.0 µmol/J efficacy, it provides intense, uniform canopy light across a 4x4 ft flowering footprint — a practical one-to-one replacement for a 1000W HPS fixture with substantially lower heat and energy cost.
Key Features
- GC-3K Full Phase spectrum (3000K) – balanced full-spectrum output suitable from veg through finish, optimized for heavy flowering
- 1950 µmol/s PPF at 3.0 µmol/J – high output with efficient power use, cutting electricity vs. HPS
- 0-10V onboard dimming – dial output 10–100%; compatible with the Grower's Choice Master Lighting Controller (up to 100 fixtures per zone)
- IP66 wet-rated – withstands humid rooms, spray, and wash-down environments
- Passive cooling, foldable frame – no fans to fail; 45 x 44 in fixture folds for easy install at 6–24 in mounting height
Specifications
| Model / MPN | ROI-FF-650 |
| Power Draw | 650 W |
| Input Voltage | 110–277 V AC |
| PPF | 1950 µmol/s |
| Efficacy | 3.0 µmol/J |
| Spectrum | GC-3K Full Phase (3000K) |
| Flowering Footprint | 4 x 4 ft |
| Beam Angle | 120° |
| Dimming | 0–10V, 10–100% |
| Ingress Rating | IP66 |
| Dimensions | 45 x 44 x 4.2 in |
| Weight | ~20 lb |
| Certifications | DLC Horticulture, ETL, CE |
| Warranty | 5 years |
Warranty & Support
Backed by the Grower's Choice 5-year manufacturer warranty. OffGrid Horizon is an authorized Grower's Choice dealer — you receive full manufacturer warranty coverage and support.
Frequently Asked Questions
What does the ROI-FF-650 replace?
It is designed as a direct replacement for a 1000W HPS fixture in a 4x4 ft flowering area, with lower power draw and heat.
Can I dim it or run multiple fixtures together?
Yes. It has onboard 0-10V dimming and works with the Grower's Choice Master Lighting Controller to run up to 100 fixtures in a zone.
Is it safe in humid rooms?
Yes. The fixture is IP66-rated against dust and water jets, suitable for high-humidity cultivation environments.