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.
Many people say the following: :With a motor with an output of 50 HP, to convert the HP output into Watts is: 50 HP x 746 Watts/ HP = 37,300 Watts or converting to kiloWatts (kW) = 37.3 kW. A motor of this size probably typically has an efficiency of 90% to 93% (0.90 to 0.93). For our purposes, assume the motor has an efficiency of 92% ( or 0.92).