Best solar light, UV LED to use for UV Sun Jar
My plan is to spray the inside of the jar with invisible UV reactive paint, so when then LED comes out, the jar suddenly starts glowing a different color.
I tried making one tonight, but wasn't happy with the results. I was using the black plastic Hampton Bay light from Home Depot - http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&productId=100068888&langId=-1&catalogId=10053&ci_sku=100068888&ci_src=14110944&cm_mmc=shopping-_-googlebase-_-D27X-_-100068888&locStoreNum=1002&marketID=48. It's only powered by 1 AA battery, and the resulting glow from the LED was really dim. I got no reaction at all from the UV reactive ground marking paint I was using in my test.