Specifications:*Voltage: 12V-24V *Number of leds: 21 *Color: White/Amber/Red *Size4.33 "11cm Long x1.37" 3.5cm Wide x 0.59" 1.5cm Deep *Surface Mounting Holes at 2.95" 7.5cmFeatures:*These lights have 21 LED's Each. *They feature engineered lens optics, and function as clearance lights, side marker OR identification lights. *These are ideal for any application on trailers and universally. *These lights are impact resistant and less susceptible to shock damage. *Each LED is directly wired and water-tight sealed. *These LEDs draw less current, generate less heat and are brighter and light faster than an incandescent bulb. *PC lens, ultrasonically welded together to ensure a permanent and water proof seal. Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.