Hopkins 48675 4 Wire Flat LED Tester and Dust Cover<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Red LED lights will glow if connection is correct and function is activated</li><li>LED indicator lights test left turn， right turn， brake， and taillight functions</li><li>Available in SAE design</li><li>Also serves as a 4 wire dust cover which prevents corrosion</li><li>Easy to use</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41dAx3M6VeL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41bLxbFzBXL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51F7LjkJUCL.jpg" noproxy>