Need a replacement lamp for a Ask/InFocus/Proxima projector with the following model numbers: LP-600, C170? BTI has you covered with our premium replacement projector lamp products. This product has been engineered to meet or exceed the original manufacturer's specifications and replaces the original Ask/InFocus/Proxima part numbers SP-LAMP-019. All BTI power adapters are manufactured and tested under our stringent quality standards and come with a 6 month manufacturer's warranty. BTI... True to the original.