Here's the lens I used in the PSI light.
I had to order the Light Kit from Walmart Online, It was $20.00 plus shipping.
So this makes this lens kinda expensive, But it does a great job with the LEDS.
The light kit is made by Schwinn and they have several models, The one I used is model #SW531 and it fits perfect in the 1-1/2 PVC pipe.
The back of the lens, You will have to cut the part off where the original bulb
mounted. This makes the LEDS fit in alittle futher and gives more light to the PSI.