Intelligent Rectifying Voltage Regulator THH-4015 ITEM NO:thh-4015Feature：1. Will not impair the original functions of the vehicle: maintains the same brightness of the headlight, the same rectifier performance and voltage regulator performance, and
Best Power Racing-Grade Dual-Voltage Regulator - THH-4059A 1. Utility model patent: M504018 Application for a patent:1082022042. Best protection charging voltage 14.0V~15.0V3. Best waterproof digital voltmeter4. Best racing-grade horsepower5. Best starting an
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