This is a really awesome project totally made at home. This simple but most reliable project cool the air on the principle of water evaporation. It has many different names in different countries. But mostly known as Water Air cooler. MUST WATCH THESE VIDEOS FOR COMPLETE GUIDENCE: WATER PUMP VIDEO: https://www.youtube.com/watch?v=rQL6R5ErF0o DREMEL TOOL: https://www.youtube.com/watch?v=iVKX1-u_qwk GRINDING WHEEL: https://www.youtube.com/watch?v=huttYnoZkcY TEMPERATURE APP: https://play.google.com/store/apps/details?id=com.playsimple.roomtemperature&hl=en PART LIST & PRICE: 1. 40” x 16” x 0.5mm thick Iron sheet x2 3.00$ 2. 8 feet long aluminum angle 1.50$ 3. 8” Car Fan 5.00$ 4. Iron mesh (2’ x6’) 0.50$ 5. Wooden strips 0.50$ 6. Water pump 6.00$ 7. Different Glues 1.00$ 8. Water pipe, buttons, regulator, wire, heat sink. 1.50$ 9. Miscellaneous e.g screws, nut bolts, tape, soldering wire 1.00$ TOTAL 20.00$ ==================================================================== DIMENTIONS: Width & Length= 13” Height= 14” Fan diameter= 8” Water grill openings=9”x 9” SPECIFICATIONS: Water Tank capacity = 10 liters (enough for 10 hours) Air throw = 10 to 12 feet. (Good enough for single bed) Rust proof body. Power consumption = 25W Input voltage = 12V DC Load current= 2A Individual on/off button for Fan and Pump with LED indicator. WIRING DIAGRAM: http://easy-homemadeprojects.blogspot.com/p/downloads.html CHARGING OF BATTERY: Connect a motorcycle battery (12V 3.5A) with a 12V 2A DC Adapter for 1.5 to 2 hours to complete charging. Like Us On Facebook: https://www.facebook.com/easyhomemadeprojects SUBSCRIBE HERE: http://www.youtube.com/c/EasyHomeMadeProjects?sub_confirmation=1