Southwire 500-Watt EQ T10 Bright White Mogul Base (e-40) Halogen Light Bulb in the Tube Light Bulbs department at Lowes.com
LED Light to Replace 1000W Halogen Light 5 Years Warranty 500W 400W 300W 200W LED Outdoor Stadium Light - China LED Stadium Light, LED Outdoor Stadium Light | Made-in-China.com
LED Flood Light 500W Equivalent - Change Halogen To LED