Full Spectrum LED Grow Lights Bulk Suppliers: PPFD, Spectrum & Price 2026
Samsung LM301H vs Osram — Commercial Horticulture LED Comparison
📌 Key Takeaway: The sweet spot for commercial grow lights in 2026 is 480-650W bar-style with Samsung LM301H EVO (3.14 μmol/J) + Osram 660nm reds, priced $0.55-0.75/W FOB. Full spectrum white (3000K + 5000K mix) with supplemental 660nm deep red and 730nm far red outperforms blurple-only and broad-spectrum-only. Bar lights with daisy-chain RJ12/RJ45 dimming dominate commercial installations for uniform canopy coverage.
💰 Price by Wattage & Chip Brand (FOB, 2026)
Wattage
Form Factor
Generic Chips
Samsung LM281B
LM301H + Osram
MOQ
100W
Quantum Board
$30-42
$40-55
$50-68
10-50
240W
Quantum Board
$55-80
$75-100
$95-130
10-50
480W
Bar (4-6 bars)
$100-150
$140-180
$170-220
10-50
650W
Bar (6-8 bars)
$140-200
$190-250
$230-300
10-50
800W
Bar (8-10 bars)
$180-250
$240-320
$290-380
10-50
1000W
Bar (10 bars)
$220-320
$300-400
$360-480
10-50
🔬 Chip Comparison & Efficacy
Chip Brand
Efficacy (μmol/J)
Spectrum
Lifespan
Cost Level
Samsung LM301H EVO
3.14
White + mint
L90 >50,000h
$$$
Samsung LM301B
2.92
White 3000K/5000K
L90 >50,000h
$$
Samsung LM281B+ Pro
2.65
White 3000K/5000K
L90 >36,000h
$
Osram Oslon Square 660nm
4.2 (red only)
660nm deep red peak
L90 >50,000h
Supplement
Osram 730nm far red
2.1
730nm far red (Emerson)
L90 >50,000h
Supplement
🌱 Spectrum Formula: Optimal commercial spectrum for full-cycle (veg → flower): 70% white (3000K + 5000K mix, Samsung LM301H), 20% 660nm deep red (Osram), 5% 730nm far red (Emerson effect for flowering), 5% 450nm blue. Avoid "blurple" (pure red+blue) — lower yield, harder plant inspection. UV-A (385nm) supplementation gaining traction for trichome/terpene enhancement but adds $0.05-0.10/W.
Application
Recommended PPFD
Recommended Fixture
Clone/Seedling
200-400 μmol/m²/s
100-240W board or T5 LED
Vegetative
400-600
240-480W bar
Flowering (cannabis)
800-1,200
480-800W bar (LM301H+Osram)
Greenhouse supplemental
200-400
480-650W bar, daisy chain
Vertical farm (leafy greens)
150-250
100-240W board, 4000K white
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