Den Haan Rotterdam Marine Navigation Lights

Based in Holland, Den Haan Rotterdam (DHR) has been manufacturing top-quality marine lighting products since the early 1920s. DHR started with tin oil-lamps that were used on ships, and have kept up with the latest technology for generations, now offering a complete range of state-of-the-art LED Marine Navigation Lights. Their LED navigation lights are offered … Continue reading Den Haan Rotterdam Marine Navigation Lights

Everything You Need to Know About Switches

A switch is an electrical device that controls the flow of electricity.  In its simplest form it has two terminals that are connected by “Contacts” to energize the circuit or disconnected to de-energize the circuit.  Thus, the options for a simple switch are ON or OFF. Circuits The term “Circuit” comes from the Latin “Circuitous,” … Continue reading Everything You Need to Know About Switches