- Replacement bare lamp bulb for Optoma projectors SP.78V01GC01 SP.7AF01GC01 BL-FP240E BL-FU240B. Compatible with Optoma UHD60 UHD50 UHD51A UHD51 UHD40 UHD30 UHD65 UHD550X UHD400X UHD350X UHD300X UHD51ALV UHD50X UHD566 and HD39Darbee Projector. - Benefits: reliable brightness and durable performance with a straightforward swap to restore projector output. - Installation: bare lamp bulb only; replace your existing housing. power off and allow the projector to cool before installing; ensure the connector is fully seated before powering on. - Warranty: 180 days replacement warranty and 30 days free refund from the date of purchase. - Use scenarios: ideal for home theater setups to enjoy bright, clear movies; suitable for classroom use for crisp lessons and presentations; good for small business meetings or events needing reliable projection with minimal downtime.