Why Choose OPP ULITE Amber 7440 Led Bulbs? Set of 2 Amber 7440 LED Bulbs - All in one error free 7440led bulbs, will not hyper flash, no extra resistors need. Nonpolarity design. Super Bright 7440 Led Bulb Canbus - For this 7440 led bulbs, it is built in 20pcs SMD led chips, 12V working voltage.360 degree beam angle, 200% brighter than halogens. Strong penetrability light pattern, let people find you faster in rainy days. Double Cooling Design 7440 Turn Signal Light Bulb - Aviation aluminum body & coolin fan for betterheat dissipation and longer lifespan. Amber 7440 Led Bulbs Fitment - Fit for turn signal light only, standard 7440, Cross Reference: 7444NA T20 7441 WY21W W21W T20,etc. 50,000+ Hours Lifespan 7440 Led Bulbs Built In Resistor - Full aluminum housing and built-in Constant Current IC Driver for fast heat diffusion and more stable performance. No digital and VHF radio signal interference. These 7440 LED bulb switchback last 50,000+ hours compared to only 2000 hours for incandescent bulbs. New Design Cooling System Amber 7440 Led Bulb Turn Signal Light Aviation aluminum body & coolin fan for betterheat dissipation and longer lifespan for 50000 hours. Amber 7440 Led Bulbs Specification: Item: amber 7440 led bulbs Led Chip: 20pcs SMD Color: amber Fitment: turn signal light Lifespan: 50000hours Application: 7440 7444NA T20 7441 WY21W W21W T20,etc. 360 Degree 7440 Turn Signal Light Strong penetrability light pattern, let people find you faster in rainy days. Bright 7440 Led Bulb Canbus 20pcs SMD led chips, 200% brighter than halogens. Amber 7440 Led Bulbs Size Standard 7440 socket Length: 51.6mm Wideth: 10.4mm Wideth (socket): 16mm