The Festool LM-OF 1400 extraction bonnet with light module, model 578683, is a routing accessory designed to improve dust extraction and visibility at the cutter area. This is an extraction bonnet designed for router dust control and better sightlines while routing. If you run an OF 1400 router and want a cleaner work area plus a clearer view of the bit, this is the kind of add-on that makes a real difference during finish work.

What matters here is not just that it covers the bit area, but that it does two jobs at once. The bonnet helps pull dust and chips away from the cut zone while the light module gives you a better look at the work surface. That is especially useful when you are following a line, easing an edge, or making detail cuts where debris and shadows can hide what the bit is doing.

From the product images, the design is purpose-built rather than universal. The clear bonnet section lets you keep visual contact with the routing area, and the integrated housing routes extraction above the guard area instead of blocking your view. In plain terms, you get a more controlled setup around the cutter without giving up visibility where precision matters.

On the job, that means better housekeeping and better confidence. Routing throws fine dust and chips exactly where you are trying to watch the cut. An extraction bonnet like this helps reduce that mess at the source, which is useful for cabinet work, trim routing, shop fitting, and any indoor work where cleanup time adds up fast. The added light is not a gimmick either. It helps when the router body, hose, or room lighting would otherwise cast a shadow over the bit area.

The compatibility story is straightforward from the product name itself: this accessory is built around the OF 1400 platform. That makes it a more targeted choice for users who want a cleaner, more visible routing setup on that machine instead of trying to adapt a one-size-fits-all dust solution.

This accessory makes the most sense for woodworkers, finish carpenters, cabinet installers, and serious DIY users who already rely on an OF 1400 router and want to improve precision, dust management, and day-to-day usability. If your work happens in a shop, inside a finished home, or anywhere dust control and line-of-sight matter, this is a smart upgrade.

Festool LM-OF 1400 Extraction Bonnet with Light Module Makes Precision Routing Easier

This is the kind of router accessory you appreciate more the longer you use it, because cleaner cuts and better visibility usually mean better results.

• Who it's for: OF 1400 users doing finish work, cabinet work, and any routing where dust and shadows get in the way.
• Why it stands out: It combines extraction control with added light at the cutter area, which solves two real routing problems at once.
• Worth knowing: This is an accessory, not a standalone router part for every machine, so it makes the most sense if you are already on the OF 1400 platform.