Newegg offers the Feit Electric 40-watt Equivalent LED Light Bulb, model no. A450/830/LED/2, for $10.99. Coupon code "NAF72HR181" cuts the price to $6.99. With free shipping, that's $10 off and the lowest total price we could find. This 6.5-watt bulb features a color temperature of 3000K, emits light equivalent to a traditional 40-watt bulb, and uses 84% less energy than a traditional 40-watt bulb.