From the page on LightingDirect.com, "...complete the form and we will ship you 1-18 watt (75 watt standard equivalent) compact fluorescent spiral bulb by Feit Electric completely free of charge - No credit card or additional purchases required. ** Limit one per customer, per household. Only eligible to US addresses within the lower 48 states.

"Energy used in our homes often comes from power plants that burn fossil fuels. This means that lowering your energy bill means burning less fossil fuel, which reduces the amount your home contributes to smog, acid rain, and global warming."

No purchase, no credit card info, just Free, Green bulbs! You will need to click a link in the confirmation email in order to get the bulb shipped. The confirmation email will have coupon codes in it for 15% off lighting fixtures (Kichler and Minka products not included) and various other discounts.