COMPATIBLE MODULES: for OPTOMA HD15H HD27eH HD28B HD28E HD28HDR HD29He HD31UST HD145X HD146X DH334 DH351 HT32LV-4K Projector Lamp | The new generation optimized wick design has better brightness, durability, and stability. Can be used for about 5000 hours, with a brightness increase of over 90% | In pursuit of higher quality, the bulb is installed in a high-quality high-temperature-resistant housing, which is safe to use and easy to install. It can be easily replaced when the projector is turned off, just like taking out an old lamp, exactly matching | Each product has undergone 100% performance testing before leaving the factory to ensure that each product can run with high performance and is brighter and more reliable than other ordinary projector bulbs on the market | Zmstlamp is a professional manufacturer and supplier of projection light sources. We will provide you with a 220-day warranty and a 30-day money-back guarantee, without any conditional feedback within 12 hours, we will do everything we can to make you satisfied. Make your choice without any worries