AMBER LED CLEARANCE MARKER TRUCK TRAILER LIGHTS Function: Clearance lamp, side mark lamps, identification Lamps etc. 5) Long life span up to 100,000 hours When powered by 12v these lights put out a very intense, "crisp" light that looks good and is very visible in the day or night time. Listing is for (4) New Single LED Trailer Marker Clearance Lights Light uses a high quality Cree LED High power 5060 Epistar LEDs with high luminous efficiency 70-90lm/W Produces approx 500 lumens of light output at 9 watts The casing is made of Rugged Aluminum Alloy Very easy to install just drill a 7/16" Mounting Hole, slide it through Secure the nut on the back an wire it up ~ easy 2 wire connection Uses: Off Road / Rock Lights Back up / Reverse Lights Interior / Step Lights Daytime Running Lights Clearance Side Marker Trailer Lights Truck bed Lights Boat Lights Specs: 3/4" Round Black Head 30" Inches of wire attached 7/16" Hole Requirement Weight: 1.62oz / 46g LED Lifetime: Up to 50,000 Hours Dimensions: (1.18 x 0.67 x 0.67)" / (3 x 1.7 x 1.7)cm (L x W xH) Features: Low power consumption high brightness. Long life-span LED Light up without delay Waterproof and dust proof Rugged Aluminum Alloy Easy for installation fits all cars and trucks