impact of the lantern would have on these communities. the amount of money that every household uses to buy kerosene every day, if they can just save that money they can be able to buy food. [ speaking in foreign language ] all along i've been at least two meals a day so i can construct the lamps. but i want to do more. it gives me satisfaction knowing that i'm lifting people out of poverty. i just feel like it's right. >> good for evans. he says that he's given out about 10,000 solar lamps so far all for free. go to cnn.com/heroes to see how he builds them. also nominate your own hero. 40 minutes past the hour and rob marciano will be coming up.