Exposure for me all the way. But since that isn't what you asked ... the build quality of Niterider lights is certainly good and solid. As Fred commented, they will interfere with your wireless computer if you have one and I feel that the battery on my Lumina 750 was rather on the small side - YMMV. I thought the quality of the mount was ok, though nothing special. If you want flashing mode on the Lumina 750 it's a right pain to get to and I also don't like the way a single press will turn it on but you have to hold the button for ages to turn it off - never worked out the logic of that. On all of these faults my Exposure Strada shows how it should be done.