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.
A very popular and âeasy on the budgetâ generator is a â20kWâ (20,000 Watts) model. Itâs easy on the budget because most 20kW generators are air-cooled (as compared to âliquid-cooledâ) and cost around $5,000.00, including a 200-Amp Automatic Transfer Switch (ATS).