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2. Grow light - Wikipedia

   en.wikipedia.org/wiki/Grow_light

   All HID grow lights require an electrical ballast to operate, and each ballast has a particular power rating. Popular HID ratings include 150W, 250W, 400W, 600W and 1000W. 600W HID lights are the most electrically efficient as far as light produced, followed by 1000W. A 600W HPS produces 7% more light (lumen-per-watt) than a 1000W HPS. [22]

3. Level Up Your Leafy Friends With the Best Grow Lights for ...

   www.aol.com/7-best-grow-lights-help-180000547.html

   These lights offer strong artificial sunlight for seedlings, veggies, and plants. Shine them in your closet or basement and keep those leafy friends happy.

4. NEMA wattage label - Wikipedia

   en.wikipedia.org/wiki/NEMA_wattage_label

   "40" sticker—400 watts (MV/MH/HPS/PSMH)—Very common "No" sticker [clarification needed] —600 watts (MH/HPS)—Lamps for commercial or industrial lighting are so rare that there isn’t any NEMA sticker. Most 600 watt HPS lamps are used for growing. "70" sticker—700 watts (MV)—Very uncommon "75" sticker—750 watts (HPS/PSMH)—Uncommon

5. Sodium-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Sodium-vapor_lamp

   A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure and high pressure.

6. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   HID lamps are used in high-performance bicycle headlamps, as well as flashlights and other portable lights, because they produce a great amount of light per unit of power. As the HID lights use less than half the power of an equivalent tungsten-halogen light, a significantly smaller and lighter-weight power supply can be used.

7. Levelized cost of electricity - Wikipedia

   en.wikipedia.org/wiki/Levelized_cost_of_electricity

   [citation needed] Assuming a low discount rate favours nuclear and sustainable energy projects, which require a high initial investment but then have low operational costs. In a 2020 analysis by Lazard , [ 18 ] sensitivity to discount factor changes in the range of 6–16% results in different LCOE values but the identical ordering of different ...