Click to expand Tap to zoom GE 29488 - 20 watt Metal Halide Light Bulb by GE Save $-16.99 $16.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart GE 20Watts M156 PAR30L Medium Screw E26 High Intensity Discharge Ceramic Metal Halide UV control open or enclosed fixtures hard glass 12,000 hours of life.