Which will use less energy - a 100 watt undimmed incandescent bulb, or a 200 watt incandescent bulb dimmed to the same brightness? - Quora
Feit Electric 200-Watt A21 Utility High Brightness Clear Glass E26 Medium Base Incandescent Light Bulb, Soft White 2700K (6-Pack) 200A/CL/HDRP/6 - The Home Depot
Tested: How Bright LEDs Are Compared to Other Lights | WIRED