I bass fish at night with black lights and couple years back bought one of those new cordless black lights BPS sells. The suction cups are too small and it tilts a lot but other than the the performance of the light is great. No cords to trip over in the dark either. The light will keep charge from say Summer time dark of 8:45ish all the way to just nearly daylight before she starts backing off a little more. It has a green and clear light option also.