Review on OPTOMA Technology Replacement Projector Lamp for TX542/EX542/TX540/GT360/GT720/ES523ST/EW533ST/GT700/TX542-3D PRO450W/PRO180ST (BL-FP180E) - High-Quality Lamp Replacement for Optimal Projection Performance by Chris Long

I have an Optima GT 720 and bought this product to replace a lightbulb that finally burned out after two and a half years of fairly heavy use (during college) on College). with many neighbors). After receiving this lamp, I have not used it for more than 20-30 hours within 4 weeks. At this point the projector started smelling like hot metal, which led me to believe it might have overheated after about half an hour of use. Eventually a large dark spot formed covering about 90% of the screen when I turned it on after watching a movie the night before. Needless to say I am very disappointed with this product especially since this problem started right after the return date.