Which outcome occurs when rapid LED cycling exceeds thermal capacity?

💡 Explanation

Increased thermal runaway risk occurs, facilitated via positive feedback. The increased temperature reduces the LED’s band gap via band-gap narrowing, thus allowing more current, especially if the bias isn't adjusted because it amplifies heat accumulation, therefore increasing thermal-runaway rather than improved mobility.

• Which microstructural defect risks accelerated crack propagation in directionally solidified turbine blades where grains solidify via a modified Bridgman casting method?
• Which risk increases when improperly compacting soil around a buried, reinforced concrete column?
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• Which outcome occurs when a hydraulic relief valve experiences rapid cycling at high frequencies?