Projector Lamp BL-FU250D Tweet Description The BL-FU250D OEM Lamp is for Optoma H57 projectors. Details Additional Category Tags: Multimedia Projector Lamps Category: Audio Visual Presentation Manufacturer Catalog Number: BL-FU250D Model: Projector Lamp BL-FU250D Product Manufacturer: Projector Lamp Subcategory: Projector & Presentation Lamps