25 years of underwater experience are invested into each Hartenberger underwater lamp. Our concepts in the design and construction of rechargeable hand lamps have been examples for the industry for many years. New products are developed using a combination of established and proven electronics, with modern advanced technology, these new products go on to become milestones in the development of underwater lighting.

We are the first manufacturer of underwater lamps with the following features:

 

• Plug in re-chargeable power packs
  
• Increased performance through the intelligent use of over-voltage
  Remaining cell capacity indicator
  
• Low cell capacity warning
  
• SOS-distress signal for emergencies
  
• Illuminated LED display for State of charge, illumination setting and remaining burn time
  
• Plug in modules to easily switch between halogen bulbs, gas discharge bulbs and LED elements
  
• Application of safe, high performance lithium manganese re-chargeable cells.