LEDMO 50w http://amzn.to/2tfoTLB edit: sometimes this link doesn't work properly, make sure you select the 50w warm white 3000k
eBay 100w multichip http://stores.ebay.com/LEDTown2015?...
Amp meter http://amzn.to/2nnX9Rg
With the amp meter we can test the lights efficiency.