3-in-1 60W Self-Heating Lunchbox for Car, Truck, or Home 50% Off with Coupon Code! Posted on March 8, 2024 | by admin Amazon.com has this 3-In-1 60W Self-Heating Lunchbox for Car, Truck, or Home for 50% off when using Coupon Code 50YPKHKW until 03/31/2024 11:59PM PDT or while supplies last.