Holley's RetroBright LED Headlights enhance classic sealed beams with superior visibility and longevity. These LEDs provide plug-and-play compatibility, 6 times longer life, and reduced heat and power usage. Designed with a low-profile housing, they fit most shallow headlight buckets without modifications. Developed with Morimoto, the headlights feature a PWM LED driver to maintain peak intensity. The 7" Round LED offers 32,000 Candela for low beam and 53,000 Candela for high beam, nearly tripling original output.RetroBright headlights fit various sizes: 5.75" round, 7" round, 4"x6" rectangular, and 5"x7" rectangular. Available in 3000 Kelvin for a classic look and 5700 Kelvin for a modern bright appearance, with yellow lens options for a European touch. Replacement for Sealed Beam Trade Numbers: H5054, H6052, H6054. Sold individually, order 2 for dual headlights or 4 for quad setups. Note: Some vehicles, such as 1st generation Toyota 4Runners, may require a separate harness due to differing wiring configurations. Standard H4 wiring may not fit these applications, and a Holley harness is in development.