Easy guys..easy..lol. The water clarity for the day(windy, non windy) also plays into it and the different lakes play a role to. We are just saying they are great for the price. One other thing is that the naughtys leds were pointed stright back and I know that the back of our boats point downward say...4-5-6 degress?? this wont help our projection of the light at the surface. Cool, lets keep this thing going.