simple and effective ,viable project for africa, share more

nice video i am a fan of your E-TECH

air cooler roof p laga k pora ghar thnda krny ka tareeqa bta dain

bhai battery ka costing to kiyaa hi nahi ??

Bi g Ups fan 8" box jo ajj kl market may ayy hay in ko banay ka tareka to define kr day Pls