If 40W actual: ~9,000 lumens total. If 23W (typical CFL equivalent): ~4,000–5,000 lumens. Better: 4×40W T12 shop tubes (12,000 lumens) 5–6" above plants + south window partial sun.
Dewy, rosy leaves = sufficient light.
Cephalotus Grow Light Schedule and Distance
Indoor Flytrap Lighting: Desk Lamps Won't Cut It
Grow Light Selection and Winter Mulching for Temperate CPs
LED Grow Lights for Nepenthes: Cost, Intensity, and Spectrum Considerations vs Fluorescent
Fixing Leggy Seedlings Under Grow Lights
Supplemental LED Lighting for Indoor Nepenthes: Setup and Acclimation
Optimal Soil Mix and Watering for Mexican Butterworts (Pinguicula)
Lighting for Nepenthes: CFL vs. Tube Fluorescents
T12 vs T8 Fluorescent Lighting for Carnivorous Plants: Which Is Better?
Improving Light for Nepenthes ventricosa: Terrarium vs Window
Assessing Light Levels for Indoor Nepenthes: Color and Growth as Guides
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