BIRNS Deepie Model 5903: Ideal for extreme pressure requirements (e.g. inside hydrostatic pressure tanks, or to oceanic trench floors): Withstands pressures to 15,000 PSI (depths to 10Km) 30-second relamping Choose 120-volt or 240-volt lamps; power: 100w, 150w, or 250w For 12V, 24V, 30V, or 36V input, use BIRNS Deepie Model 5902 BIRNS Camera Light, Deep Submergence, Model 5910: Ideal for small cameras with extreme pressure requirements: Withstands pressures to 15,000 PSI (depths to 10Km) 30-second relamping Very small size (Ø35mm x 89mm) Top of Page