The design and method of retrofit attachment is almost identical to that of halogen bulbs. The light source was changed in them, instead of a glass bulb and filament we have a set of LEDs. As a result, we get almost twice as bright, white light with a much wider range.However, this solution, although legal in sales, Despite this, lighting manufacturers are systematically developing these constructions. The last effect of this work is the Range Performance LED range in Narva's offer. It consists of the equivalents of halogen bulbs H1, H3, H4, H7, H11, H8 / H11 / H16 (fog lights) as well as HB3 / HB4 and HIR2.The new retrofits, compared to the previous series, have gained a compact design in which the control box is integrated. The operating pattern of the centering ring relative to the optical system of the headlight has also been modified. The issue of heat dissipation efficiency was solved by an anodized aluminum heat sink. The base has a built-in fan motor.Narva Range Performance LED have a higher color temperature of 6,500 Kelvin. It is close to daylight, and thus neutral to human sight. The designers also took care of maintaining an ideal beam cut-off line, which prevents the glare effect of other road users.These retrofits are designed for 12 and 24V automotive installations.