Which outcome dramatically shortens LED array lifespan when constant-current drivers fail to compensate for thermally-induced voltage changes?

💡 Explanation

Thermal mismatch leads to current hogging, meaning hotter LEDs draw more current exacerbating their heat; because positive feedback dominates, the Thermal runaway mechanism begins, resulting in extreme junction temperatures and degradation; therefore, lifespan decreases rather than efficacy or chromaticity changes.

• Which risk increases when an internal combustion engine piston experiences 'piston slap' after initial startup?
• Which consequence results when a hydraulic actuator, tasked with rapidly adjusting heavy telescope mirrors for optimal observation, experiences air entrainment?
• Which risk significantly increases when lean fuel mixtures occur in a two-stroke engine?
• In a high-performance internal combustion engine, which risk substantially increases within the piston assembly during sustained detonation?
• Which outcome occurs when rapid engine knocking creates excessive pressure on a piston's crown?
• Which outcome occurs when a single-phase load is disconnected on an unloaded three-phase transformer bank?