General
Assembly arrangement	Basic element
Type of load	Universal and LED Retrofit
Mounting method	Flush mounted (plaster)
Type of fastening	Mounting with claw and screw
Material	Plastic
Material quality	Thermoplastic
Surface protection	Untreated
Surface finishing	Matt
Colour	Black
Suitable for degree of protection (IP)	IP20
Nominal voltage	230
Control voltage	230
Connection type	Other
Width of device	71
Height of device	71
Depth of device	30
Min. depth of built-in installation box	28
App control via Bluetooth
Dimming phase cut-on
Dimming phase cut-off
Serial dimmer
Substation input
Light value memory
Applicable with button
Applicable with movement sensor
Applicable with presence indicator
Applicable with time switch/timer
Applicable with transmission button
Applicable with infrared button
Halogen free
Transparent
IFTTT support available

2-wire connection technology (neutral conductor not required).
Neutral conductor can be connected optionally (recommended when connecting low loads, < 10 W/VA).
Touch dimmer for dimming lighting systems.
Operation in two-way circuits possible via button extension.
Operation also possible via conventional buttons (2020 US, 2021/6 UK).
Optimized for dimming retrofit LED lamps (LEDi).
For dimmable retrofit LED lamps (LEDi).
For dimmable retrofit LED lamps (LEDi) on conventional or electronic transformers.
For incandescent lamps, 230 V halogen lamps, low-voltage halogen lamps with conventional or electronic transformers and dimmable halogen energy-saving lamps.
Mixed load operation LEDi and conventional lamps possible.
With manually adjustable operating mode: leading edge / trailing edge.
With adjustable minimum brightness.
With light value storage and minimum brightness storage.
Low noise through the use of MOSFET transistors.
Short-circuit proof and overload proof (electronic fuse).
Without control element.
For control element flex, 1-way, 64711 and wireless, 62711-WL.
For control element flex, 2-way, 64721 and wireless, 62721-WL.
For Busch-Komfortschalter® flex control element 64765-... .
For Busch-Wächter® 180 flex sensors 6476x-... .
For Busch-Wächter® 180 flex sensors, wireless, 6276x-.-WL.
For Busch-Präsenzmelder flex sensors 6475x-... .
Can be combined with extension insert flex, 64891 U.
Rated power: 3-240VA (LEDi).
With conventional transformers, take into account ~20% transformer losses.
For electronic transformers, take into account transformer losses of ~5%.
The device can be used via a wireless sensor in Busch-flexTronics® wireless or Busch-free@home® wireless.
Only install in conjunction with commercially available flush-mounted device boxes in accordance with DIN 49073 Part 1.