(Answered) LED lights are replacing incandescent lighting in many applications, including in industrial…

➤ What variable costs matter in a life‑cycle analysis of LED versus incandescent?
Variable costs cover electricity consumption (kWh and demand charges), routine bulb replacements, maintenance labor per service visit, cleaning, disposal fees, and HVAC load changes from reduced heat. Include utility rate escalations, operating hours, and inventory costs for spare lamps that change with use and replacement frequency.