Amazon.com: Genuine OEM Replacement Lamp for BenQ MS504, MS504A, MS514H, MS517H, MS521P, MS522P Projector - IET Lamps with One Year Warranty (Power by Philips) : Electronics
Amazon.com: AWO Original UHP225W Lamp Bulb for 5J.J9R05.001/5J.JC205.001/5J.JFH05.001 with Housing for BenQ MS504,MS521P,MX505,MX507P,MX522P,MW3009,MW526A,MW526H,MW529,MW571,TW523P,TW526,TW259,TW539,TH530,MH530 : Electronics