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T-Shirt Shop + Bulbs.com

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By converting their lighting to LED, a small t-shirt shop is going to start adding $5,386 to their bottom line every year in the form of energy savings. Based on their average sale price of $20 per shirt at 3.5% margin, they would have to sell an additional 7,692 t-shirts per year to equal that in revenue. BONUS – the LED lighting started to pay for itself after just 4 MONTHS.