The LW 400 dimmer is an upgrade to be paired with a LW 400 basic kit.
 
Enter coupon code: UPGRADE when purchasing with a base kit.
 
The dimmer is made from the same material as the reflective pipe.  It employs a motor driven butterfly valve inside of the pipe section to reduce the supply of daylight light into the interior. It is easy to connect the pipe sections, elbows, Blue Performance or the ceiling diffuser.
 
120V AC power
Wire to a wall switch
Turns tubular skylight into a on/off daytime light fixture