Choosing Compact Grow Lights for Nepenthes: T5 vs. T12 vs. CFL

A grower with a large Nepenthes collection asked whether to invest in a pricey T5 fixture (104 watts, 72% brighter than shop lights) or stick with their 4-foot, two-bulb T12 shop light.

Jeff Dallas broke it down: T5s are unmatched for intensity, longevity, and efficiency. Their tubular design covers more growing area than CFLs. Because they’re brighter, they can be mounted higher, giving more vertical space for plants. The decision hinges on available space, budget, and the specific light needs of the species being grown.