Home Depot offers the EcoSmart 40-watt Equivalent A19 LED Light Bulb 4-Pack, model no. ECS GP19 WW 40WE, for $19.97 plus $5.99 for shipping. (Free in-store pickup is also available.) That's tied with our mention from two weeks ago and the lowest total price we could find for this quantity by $20. Each bulb puts out 450 lumens for a purported 23 years.