The Alfa (for NXT2 1000W) and Delta (for NXT2 600W) have been used successfully in horticulture for years. The reflectors are designed for optimal performance in multiple applications. The rectangular light image creates more width radiation in the crop, for excellent uniformity and light distribution. The special, polished surface material creates a diffuse light pattern and is corrosion resistant, which means that contamination is less likely to occur.