This is a original inside lamp, meaning the bulb used is the same as in the original lamp from SONY. As the original bulb is used you can be sure the performance will match the original. See below for more options.
Projector Lamps
SONY VPL-HW55ES lamp/bulb - Fast worldwide shipping, great prices
Sony Original Inside Lamp For SONY VPL HW55ES Projector (Original Lamp in Compatible Housing) - Projector Lamps from AV Parts Master Ltd UK
Original Inside lamp for SONY VPL HW55ES projector - Replaces LMP-H202
Sony LMP-H202 Projector Lamp with Module
Sony LMP-C150 Projector Lamp with Module - MyProjectorLamps USA
Sony LMP-H202 Projector Lamp with Module - MyProjectorLamps USA
OEM and Replacement Projector Lamps – Tagged Sony – Dynamic Lamps
How to Replace Your LMP-H220 Projector Lamp in Your Sony Projector.