Our solar powered navigation lights can be mounted on the mast head or at the bow. 
			
The main body is white. We have had a similar system installed on our own yacht for the last 2 years. We are very pleased with it.
			

			Visual Range: 4.5-7.5km(2.5-4nm)
			Autonomy: >21days (12hour darkness,12.5%duty cycle)
			Waterproof: IP68
			Size: H212mm * D227mm
			Net Weight: 1.5KG
			Working Mode: Steady-on & Flashing adjustable
			Intensity: 25% 50% 75% 100% adjustable (up to 32cd)
			Horizontal Degree: 360° (can be 112.5°/135°/225°)
			Temperature range: -30℃ to +50℃