Artificial Light Spectrum for Carnivorous Plants: What We Use

Specific color temperatures used at Sarracenia Northwest:

Fluorescent: 6500K (daylight) for CFLs; 4100K (cool-white) for standard T12 tubes.
HID: Metal halide at 4000K.

Intensity (lumens) matters more than spectrum. Bright 4100K beats dim 6500K.

Carnivorous Plants: Optimizing Fluorescent Lighting for Orchids: Intensity, Spectrum, and Balance; Combining Window Light and T5 Fluorescent for Carnivorous Plants; Nepenthes Lighting: Combining Window and Artificial Light in Portland; Choosing Compact Grow Lights for Nepenthes: T5 vs. T12 vs. CFL; Supplemental Lighting for Nepenthes on a Windowsill; Why Your Sarracenia and Venus Flytraps Lack Red Color in a Greenhouse; Rescuing Nepenthes ventrata: Artificial Lighting Setup; Why Your Bougainvillea Changed Color After Planting in the Ground; Growing Hibiscus Indoors Under Artificial Light; Artificial Light for Propagating Begonias: Spectrum and Duration

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