Water depth significantly impacts artificial lighting effectiveness underwater due to several factors:
- Light intensity decreases exponentially with depth
- Different wavelengths (colors) are absorbed at varying rates
- Particles in water scatter light in all directions
LED lights behave differently than traditional lighting underwater. Blue and green LEDs typically maintain better intensity at depth, while red LEDs may need higher initial power output to remain visible. For optimal results, underwater lighting systems often use a combination of color temperatures and must be adjusted based on depth and water conditions. Professional underwater lighting typically operates between 5000-6500K color temperature to approximate natural daylight.