Two of the most respected names in professional LED horticulture go head-to-head
Gavita and Horticulture Lighting Group (HLG) are the two most recommended premium LED brands among serious growers. Both use Samsung LM301H or equivalent diodes, both produce exceptional yields — but they have meaningful differences in price, form factor, spectrum control, and warranty support. This comparison covers their flagship 600–700W models head-to-head.
| Feature | Gavita Pro 1700e LED | HLG 650R v3 |
|---|---|---|
| Actual Power | 645W | 645W |
| PPE (Efficiency) | 2.7 μmol/J | 2.8 μmol/J |
| Diodes | Samsung LM301H + Deep Red | Samsung LM301H + R |
| Coverage (Flower) | 4×4 to 5×5 | 4×4 to 5×5 |
| Dimming | 0–100% analog | 0–100% analog |
| Daisy Chain | Up to 512 units (EL controller) | Up to 100 units |
| Warranty | 5 years | 5 years (3 on drivers) |
| Price | ~$799 | ~$699 |
| Best For | Commercial, multi-light rooms | Home growers, 1–4 lights |
Gavita built its reputation on HPS and has successfully translated that professional focus to LED. The Pro 1700e uses a distributed LED design (smaller heat sink bars) rather than a monolithic board, which gives more even canopy penetration. The standout feature is Gavita's EL controller compatibility — you can control and schedule up to 512 lights from a single controller, making it the go-to choice for commercial grows.
Gavita Pro 1700e LED
~$799
Shop Gavita →HLG 650R v3
~$699
Shop HLG →HLG is made in the USA and has built a rabid following in the home growing community. The 650R v3 edges out the Gavita in raw efficiency at 2.8 μmol/J, and the enhanced red spectrum is tuned specifically for cannabis flower. HLG's quantum board form factor provides very even canopy coverage and the brand's customer support is frequently cited as exceptional.
Commercial grows: Gavita Pro 1700e. The EL controller integration, distributed light design, and Gavita's commercial track record make it the choice for multi-light rooms.
Home growers (1–4 lights): HLG 650R v3. Slightly better efficiency, slightly lower price, American-made, and exceptional home grower support make it the better value for a personal grow room.