The Edge tail light kit was the first mod I did to the WR250X. In conjuction with a pair of DRC Type 601 LED turn signals, it really cleans up the rear fender area of the bike. Here are the parts I used....
• Edge Tail Light Kit (Red Lens)
• OEM Connector Kit (available as an $11 option with the Edge kit above)
• DRC Type 601 LED Turn Signals (Smoke)
Installation was pretty simple and took me about an hour and a half. The OEM connectors are nice because once you install them on the wires for the tail light and turn signals, you can just plug them right into the connectors already on the bike. It makes for a nice plug-n-play installation.
On the Edge tail light, all LED's come on as a running light, then all get brighter when the brakes are applied. License plate illumination is provided by 3 white LED's on bottom of the tail light. The Edge kit does not come with turn signals, so I bought the DRC Type 601 LED flashers which bolt directly to the Edge tail light bracket.
Here are the before and after photos. Notice how nice and small the final product is... a huge improvement over the enormous ugly stock rear tail light and turn signals.
Before (click photo to enlarge)

After (click photo to enlarge)
This is the huge factory piece that is removed from the bike...

Where To Buy:
• Edge Tail Light Kit (Red Lens): SoloRacer.com
• DRC Type 601 LED Turn Signals (Smoke): SoloRacer.com