Revolutionary U-40™ Ultracapacitor technology re-energizes to full power in under 40 seconds
Kerr Demi™ Ultra is the first and only curing light powered by state-of-the-art ultracapacitor technology. Although ultracapacitors are similar in size and shape to batteries, they work much differently - re-energizing in a matter of seconds, and maintaining their energy capacity year after year.