Lighting- underwater - Import export

Knight Optical offer a range of Stock N-BK7 Dome Windows, for use with Underwater Lighting. A dome is an optical window composed of two parallel curved surfaces. Domes are commonly used in defence applications and often in extreme environments such as Submersible ROV’s. The shape of the window creates a naturally strong shape that gets tougher under pressure. Using a curved dome optical surface allows for an increased beam angle, therefore allowing a greater area to be lit from one light source. For visible applications, N-BK7 with its high optical quality and uniform transmission and low absorption in the visible spectrum makes it an ideal material for underwater lighting. A tough and cost effective solution which allows for good transmission of the light source in the underwater environment will both protect the light source as well as transmitting from 300nm up to 2µm. For more information read PDF

Thallium(I) iodide is used in mercury lamp to enhance its performance. It is mainly used for underwater lighting, since the blue green light produced has least absorption in water. Scintillator made by using iodide salt of thallium, sodium and cesium is utilized for radiation scintillation detectors.

This floating fountain is easy to install and does not require construction works. Its compact size makes it easy to install in a pond - just connect the device to the control panel. The fountain provides aeration of the water, prevents the growth of algae. Additional options (such as lighting) are not included in the set. They can be ordered separately. The fountain is equipped with a valve that allows you to change the jets heights manually. In order to automatically change the jets heights, the fountain can be connected to a frequency converter (additional option). Automatic switching on and off of the fountain and lighting (not included) is performed by the Siemens controller. Equipment: 1. Floating module made of stainless steel 2. Pump in a stainless steel filter casing 3. Fountain nozzle 4. 8 pins for fixing the lighting fixtures 5. Underwater cable - 50 m. 6. 4 concrete anchors in a polymer sheath, rope, carabiners. 7. Weatherproof fountain control cabinet, IP66.