915B403001 915B403001 Replacement Lamp with Housing for WD-73737 WD73737 Mitsubishi Televisions 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