2008 Freightliner Sprinter 3500 Headlight Low Beam(with HID headlamps) D1S HID OPTIONS_HIDDEN_PRODUCT use our search tool and

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9011 HID Replacement Bulbs are compatible with 35W and 55 W ballast

This Nimbis 9055 LED Headlight kit comes with all in one Fan led that is a step above our Lumenis Kit in regards to Reliability and Longevity

2) Is it difficult to install upgrade LED bulbs

2008 Freightliner Sprinter 3500 Headlight Low Beam(with HID headlamps) D1S HID OPTIONS_HIDDEN_PRODUCT use our search tool andOur D1S Direct Factory Replacement bulbs is a very low energy consumption while being powered by 35W. 3,000K 4,300K 6,000K 8,000K 10,000K What's included One Pair of D1S Direct Factory Replacement Bulbs, Available in 5 different temperatures 6,000k being the brightest.