From the creators at Ener-J this 1 gang wireless kinetic switch is part of their Eco Range as it runs solely on kinetic energy and requires no power supply or batteries. This product is suitable for all surfaces and environments as it is IP67 rated and fully waterproof / dustproof. This product has a life of 50 years or 200000 switch cycles and is sold with a 2 year warranty. This product functions as a dimmable and non-dimmable switch. Please not a receiver must be purchased separately.