The main objective of a physical map is to show landforms, bodies of water and other geographical features. Features shown include mountains, deserts and lowlands as well as lakes, rivers and oceans.
Depending on your electricity prices, a 400 watt HID will cost $200 â $400 each year of use, plus the cost of replacement bulbs. LEDs meant to replace 400w HIDs average around 180 watts.
Relevance. Rating Newest Oldest. Best Answer: you are running it for 0.5 hours so 1500 * 0.5 = 750 Wh Since the cost is in kWh i will divide this result by 1000 to get it in K 750/1000 kWh = 0.75 kWh 1kWh costs 0.12$, so 0.75 kWh will cost, (0.75 * 0.12) $ = 0.09 $.Source(s):elevance. Rating Newest Oldest. Best Answer: you are running it for 0.5 hours so 1500 * 0.5 = 750 Wh Since the cost is in kWh i will divide this result by 1000 to get it in K 750/1000 kWh = 0.75 kWh 1kWh costs 0.12$, so 0.75 kWh will cost, (0.75 * 0.12) $ = 0.09 $.