ANDERS KERN 21 231 Bulb Only manufactured by ANDERS KERN Type: Bare Bulbs Wattage: 250W Lamp Life: 2000 hours Compatibility: 100% compatibility with the following ANDERS KERN projector models AST-BEAM X311. Matching Part Numbers = 21 231 Specifications: Bulb only item. Manufacturer original. Feature: Display device: Projector. Lamp Type: UHP. Lamps in projector: 1. Lamps in box: 1. Weight: 261 g Labor: 90 day manufacturer warranty