NP21LP - Lamp With Housing For Nec NP-PA550W, NP-PA500U, PA550W, NP-PA500X, NP-PA600X, PA500U, PA600X, PA500X Projectors Bulb With The Housing AuraBeam Economy Series Television Replacement Bulb. This is an Aurabeam Economy Series lampl For a Brighter & Sharper Picture look for the Aurabeam Professional Series replacement lamp. 180 Day Warranty Included. Exclusive Bulbs is the only authorized reseller of AuraBeam Lamps