Feature: 1. Replacing OE: 28548123 499329883 LTM LL TFL, 4G0907397D 4G0.907.397.D 4G0 907 397 D, 4G0907397P 4G0.907.397.P 4G0907397 P, 4G0907397R, etc. 2. Vehicle Fitment: Fit for A1 (2013‑2014); Fit for A3 8V (2013‑2015); Fit for S3 8V (2013‑2015); Fit for A6 (C7); Fit for Octavia; Fit for Yeti. 3. Stable Output: The use of international advanced electronic ignition technology, high voltage output stability, less interference, strobe up to 10 million times without damage. 4. Wide Compatibility: Imported ballast pin design, compatible with super fast start ballast and frequency decoder or for X3 decoder, D1 D2 D3 D4 compatible installation, to meet the installation of different models. 5. Smart Chip: C‑BUS intelligent chip integrates all protection functions, power constant, high and low voltage automatic constant light adjustment and constant light of the lights, supports fast start and fast strobe. Specification: Item Type: Daytime Running Light Ballast Material: Metal OE: 28548123 499329883 LTM LL TFL, 4G0907397D 4G0.907.397.D 4G0 907 397 D, 4G0907397P 4G0.907.397.P 4G0907397 P, 4G0907397R 4G0.907.397.R 4G0 907 397 R, 4G0907697P 4G0.907.697.D 4G0 907 697 D, SW 0620 HW 0004 PID LL3V3Z9, SZM DH1 ET01 Input Voltage: 9-16V Maximum Input Current: 6A-8A Instantaneous Starting Voltage: ≥23KV Output Voltage Waveform: Square Wave Frequency: 250±10Hz Output Open Circuit Protection: ≤1S Output Short Circuit Protection: ≤1S Input Voltage Reverse Protection: ≤1s Operating Temperature: -40℃-105℃ Service Life: ≥30000HRS Fitment: Fit for A1 (2013-2014) Fit for A3 8V (2013-2015) Fit for S3 8V (2013-2015) Fit for A6 (C7) Fit for Octavia Fit for Yeti. Package List: 1 x Daytime Running Light Ballast Note: 1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!