Newegg offers the Collection LED 4-watt MR16 LED Light Bulb, model no. CL-MR16-4W-C, for $4.99. Coupon code "AFEX0309" cuts it to $4.49. With $1.99 for shipping, that's the lowest total price we could find by $13, although we saw it for a buck less last summer. This 30-watt equivalent light bulb features a 200- to 399-lumen brightness range and 40,000 lifetime hours. Deal ends March 15.