Here are the steps on how to use Promo Code when shopping at smart-light.co.uk: Add your favorite items to the shopping cart, then click to log in or create a new account, then go back to the shopping cart interface of smart-light.co.uk and select the items you want to buy. Then check out, click order, select the eligible Coupon, and finally complete the payment. Plus, here's smart-light.co.uk's latest sale on October: Be Budget Savvy, Shop At Smart-light.co.uk. Remember That These Deals Are Only For A Limited Time.