Why modern LED bulbs are bringing back the flicker that CFLs solved

While compact fluorescent lamps were once praised for energy efficiency, some users reported headaches. This video examines why fluorescent light can trigger discomfort in sensitive individuals, why CFLs avoided this issue, and how contemporary LED technology is inadvertently reintroducing the very flicker that once plagued earlier lighting.

The compact fluorescent lamp (CFL) served as a significant innovation for energy conservation, though it has largely been phased out of modern use. Despite its benefits, some users historically associated fluorescent lighting with headaches or eyestrain.

This exploration clarifies the mechanical reasons behind such sensitivity and contrasts the performance of older CFL technology with modern LED bulbs. It highlights how current LED designs may inadvertently replicate the flicker patterns that previously caused discomfort, reintroducing a problem that the CFL era had largely managed to overcome.

Source: LED bulbs that flicker, and CFLs that almost never did