Dewenwils Wireless livid outside Control Bulb SocketRemotely on lights in darkness or turn off without getting out of chair or hearty bed in winter ; Do not need to be in line of sight for outside to work by various ON/OFF button ; Go gullible and save on your physical phenomenon bill ; No pre-programming required ; Easy to install and favorable for home/office use ; Simplify your life with this bang-up lighting fixtures.Learning Function & various ON/OFF ButtonsThere are 3 sets of ON/OFF buttons totally.First set has been paired with the position socket .2 component sets can be put-upon to add more lamp sockets and you can seamlessly expand your system with opposite Dewenwils outback operate socket sets.The learning function allow you to operate quadruple sockets with 1 outback or operate 1 socket with quadruple remotes.Each cap has a minor button for re-programming or vade mecum switch .80 ft outback Control RangeStrong radio frequency transmission can work through walls and doors to operate lamp as far as 80 ' in ingenuous area.The radio set range may be shortened by opposite physical science devices, appliances, walls, or opposite natural science barriers, so in real use, the distance maybe slightly less than 80 '. Smaller SizeThe socket approximately 2.28 '' in height or length.Please measure the size carefully before you buy if you want to use it under lampshade or in crocked space.Specifications : - Input Voltage : 120VAC 60HZ - Max.load Power : light Bulb 60W ; CFL/LED 20W - Transmission Frequency : 433.92 MHz - outback Control Distance : 80 Feet -LRB- Free Area -RRB- - Transmitter Battery : 12V -LRB- 23A -RRB- Alkaline Battery -LRB- Included -RRB- - Socket Type : stock Medium E26/E27Packing List : - 1 x outback Controller - 1 x Lamp Socket - 1 x User ManualNote : For customers who ordered quadruple units, please feel inexact to contact us if you have problem with re-programming.