This question is on Economic Value Advantage (EVA). LED light bulbs are twice as long-lasting and four times as energy-efficient as the compact fluorescent bulbs (CFBs) they commonly replace. A 5W LED bulb gives the same amount of light as a 20W CFB. A Hollywood couple spends $1 per month on electricity charges for each of its 20W CFBs lighting up its dance floor at home. It also breaks one in ten new bulbs due to poor handling during replacement (a habit will continue even when it changes to LED light bulbs). The couple wants the same amount of light with either type of lighting. If each new CFB costs $3 and lasts six months, what is the household's economic value advantage with each 5W LED bulb? Show work.