Now also I have ordered my new DBS lens. I also ordered on that I hope will fit in my CL1H or my Solarforce. I am looking forward to this very cheap and efficient upgrading of my lights. The gain should be more than stepping up a bin in led efficiency...:thumbsup:
I did some experimenting on this. As can be seen in post 18 of this tread, I found that the peak illuminance (lux) of my DBS was reduced about 16 % with the standard lens in place! The total light output (lumens) was also reduced considerably, but not that much.