You must have a single or combined order of 49 or more lamps to receive this volume price. Real Sun F72XXX 100W RDC Lamp sold INDIVIDUALLY. You can combine lamp sizes, wattages, and brands to achieve the volume quantity required to get this price.The freight will be calculated after you have made your purchase and will vary depending upon your zip code and quantity. Freight charges will show up as a separate charge on your credit card once you have checked out. Freight prices normally average from $60 to $120 for volume lamp shipments. If you would like to know the exact freight charges before you check out please call Real Sun 1-800-667-9189.