Magnetic base (Easy attach on the roof)<br> High quality and bright bulbs.<br> No delay in lighting, much , prevent the rear-end collision danger.<br> Power ON indicator light.<br> Easy installation, just attach the light on the roof ( plug is not included).<br> Waterproof and sun-proof design.<br> Adopt big and stable chip.<br> Condition:100% New<br> Voltage: DC 12V<br> Rated Power: 5W<br> Current:10A<br> Size:29cm*14cm*10cm<br> Wire Connection:<br> Blue Wire - Positive<br> White Wire - Negative<br> Fitment:<br> Fit all kind of vehicle with 12V working voltage<br> Note:There Are No Instructions Included In This Kit.Professional Installation Is Highly Recommended<br> colour:Yellow<br> Material:ABS<br> Package Contents:<br> 1 * Roof Top Sign Light<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.