This is what i have but i wanted to know what the 2100k is how hot is that do i need a fan one it or is it fine: http://www.betterthannature.com/catalog/product_info.php?currency=USD&products_id=27 CCT (K):2100 Ceramaluxâ„¢ High Pressure Sodium Lamp Watts: 430 Bulb: ED-18 Base: Mog. Product Number: 046677-31710-7 Ordering Code: SON AGRO 430W ANSI Code/Ballast Ref.: S51 Package Quantity: 12 Description: SON AGRO M.O.L. (in.): 9 3/4 L.C.L. (in.): 5 3/4 Rated Avg. Life (Hrs.): 16,000 Approximate Initial Lumens: 54,000 Approximate Mean Lumens: 48,600 CRI: 21 CCT (K): 2100