Cost Comparison Between Solar vs. Traditional Lights
LED EX39 Corn Bulbs - 54 Watt - 250W Metal Halide Replacement - 5000K Daylight - Mogul Base; 100-277 volts
How much energy can LEDs really save in greenhouses?
LED High Bay Light,100W 12000LM UFO LED High Bay Lights with US Plug 5' Cable, Eqv.400W MH/HPS,6500K Super Bright LED Shop Lights,IP65 Waterproof Commercial Bay Lighting for Garage Factory Workshop - Amazon.com
CINOTON 90W UL Listed 12000LM Outdoor Led Wall Pack Light with Dusk-to-Dawn Photocell Sensor, IP65 Waterproof 5000K Daylight Wall Mount Lights, Support 110-277V AC Power Replace [400W HID/HPS] - Amazon.com
CT CAPETRONIX High Bay LED Shop Lights 150W 19,500LM, 5000K 110V 400W HID/ HPS Equivalent, 5' Cable with 110V Plug, Hanging Hook, 120° Beam Angle, CRI>80 LED High Bay Light for Gym Warehouse
UL-Listed LED Corn Light Bulbs-54W Bulb Light 5000K E26 Medium Base 8370Lm LED Corn Bulb Replacement for 175W-250W Metal Halide/HID/CFL/HPS for Warehouse Home Office Garden School Garage Lights - Amazon.com
The High Pressure Sodium Light: Ubiquitous, effective, but good? - YouTube