Specification: 2pcs 7443 54smd 3014 chips, Length:1.4” 35.8mm, Diameter: 0.71” 18.2mm , amber light, 300lm per bulb, Voltage: 12V-24V, Wattage: 3w. | Wide Application: 7440 7443 7441 T20 W21W for brake light,back up light, tail light etc.A 50W load resistor must be needed to avoid error code or hyper flash when using as turn signal light. | Upgrade Chipset: 54pcs upgrade 3014 Chipset, copper bracket, gold wire solder.Fast heat dissipation, durable long life time,high brightness. 300% brighter than original halogen bulb. | High Quality: Built-in intelligent constant current IC driver. Plug And Play, 360 degree Beam Angle,longer life span, lower power consumption, 15% of halogen bulbs consumption | Warmly Service: Buy with confidence, one year no hassle for refund. Any questions, just feel free to contact us via your order or click the blue font "Melphan-Auto" for help.Our Customer Service Team will reply within 24 hours. and make satisfactory solution with no hassle for you.