http://www.amazon.com/LENBO-Whitebule-8000-9000LM-3000mA-30V-32V/dp/B00BWH8VWO/ref=sr_1_8?ie=UTF8&qid=1413954806&sr=8-8&keywords=100w+led+light

And a case/lens for the LED chip.

http://www.amazon.com/Reflector-Collimator-Housing-Fixed-bracket/dp/B00HLBHLIA/ref=pd_sim_hi_1?ie=UTF8&refRID=09R5SXH3R7NKXYDM5RZW

And compare it with an 100W incandescent light bulb

http://www.amazon.com/GE-41036-100A-Light-bulbs/dp/B000U7Q7PK/ref=sr_1_2?ie=UTF8&qid=1413955297&sr=8-2&keywords=incandescent+bulbs