Here is the set up of this comparison: On the left side, there are 4 Cree LED bulbs, each runs 9.5W and cost $12.75. Totally 4 bulbs use 38 watt and cost $50, they are fixed on a board and hang from a horizon pole; on the other side hangs our 30watt World lamp LED shop light ($50 each) at the same height. Right in the middle, I have a vertical board set up to reduce interference between these two.
The result can be seen in this photo as well as on a Lux meter.
As you can see, the 4 bulbs emit light to all direction vs. LED shop light puts most of light at down below. in the end, the Lux meter recorded 406 lux from less powered LED shop light; and the 4 Cree LED bulbs side only recorded 308 lux. It would probably need 22 watt in shop light to get same brightness as LED bulbs with 38Watt.
Get this World Lamp LED shop light today at EasyLEDlighting.com
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