This flasher unit will work with both LED and Incandescent bulbs

Suitable for both negative and positive ground systems
For negative ground connection - terminal B to live, terminal L to bulbs
For positive ground connection - terminal B to bulbs, terminal L to live

LED turn signal bulbs do not draw enough current to trigger a conventional thermal trip indicator relay, which often results in no flash or a hyper flash of the turn signal bulb.
To overcome this issue, our LED compatible relay is frequency adjustable via a screw driver slot located on the underside. This allows the unit to be adjusted to suit your bulb configuration.
This unit can be used with both LED bulbs and incandescent bulbs, or a combination of both. Just dial in as required

Please note that the unit size is slightly larger than a standard flasher unit and will not fit the relay holder