Warehouse-Lighting.com’s Keystone 250W metal
halide ballast kit five tap has voltages of 120/208/240/277/480V and a minimum
start temperature of -30 degrees C. The power factor is high. Available at a
competitive price from Warehouse-Lighting.com, this ballast kit becomes an even
better deal if you take advantage of our bulk discounts. A warranty of two
years is included.