LED Grow Lights: What Buyers Should Know
An LED grow light is a horticultural fixture delivering a full-spectrum output tuned for plant photosynthesis, used in greenhouses, indoor farms, and vertical farming. Buyers source from China LED grow light manufacturers for 2.5-3.0 umol/J photon efficacy and high PPFD uniformity.
The critical spec is PPFD (photosynthetic photon flux density) and spectrum (full-spectrum white vs red/blue). Dimmability and IP65 for humid environments matter in commercial grows. The suppliers below are screened against these horticultural requirements.
Curated Suppliers — LED Grow Lights
7 Checks Before Choosing a LED Grow Lights Supplier
1. PPFD
Verify PPFD at canopy height matches your crop's light requirement.
2. Photon efficacy
2.5-3.0 umol/J indicates an efficient, cost-effective fixture.
3. Spectrum
Full-spectrum white is versatile; red/blue is efficient for specific stages.
4. Dimmability
0-10V or DALI dimming lets you tune intensity by growth stage.
5. IP rating
IP65 for humid greenhouses; IP20 acceptable in dry indoor farms.
6. Heat output
Lower heat output reduces HVAC load in sealed grow rooms.
7. Warranty
Three to five years is standard for reputable grow light manufacturers.
Frequently Asked Questions
What spectrum is best for LED grow lights?
Full-spectrum white works for the full growth cycle, while red/blue blends are efficient for vegetative and flowering stages.
What is a good PPFD for indoor plants?
Most leafy greens need 300-600 umol/m2/s; fruiting plants need 600-1000 umol/m2/s at canopy.
How efficient should a grow light be?
2.5-3.0 umol/J is the benchmark for modern commercial LED grow lights.
What is the MOQ for LED grow lights?
Typically 50-200 units for standard models, with OEM spectrum customization starting higher.