Diamonz DM120 retrofit kit is best choice for replacing 400W Metal Halide or HPS lamps. This retrofit is designed for maximum efficacy (lumens/watt), cool operating temps and long life. To obtain such high lumens/watt values requires the use of many LEDs. For this reason, optics are not available. If you need a lighting application that requires more controlled light distribution, such as Type V, please call and ask about our Diamonz DZ130 product.