The 57 watt SLIM57 LED wallpack from RAB Lighting is capable of replacing a 250W metal halide wallpack while saving up to 150% in energy costs. With expected life of more then 15 years the SLIM57 eliminates frequent lamp and ballast maintenance needed with traditional HID wallpacks. RAB being a highly reputable manufacture in the industry and the fixture having a worry free 5 year warranty makes this fixture a No-Brainer!