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Dongfeng Tianlong Truck Spare Parts Internal Roof Lights 3714170-C0100 Tianlong Truck Cabin Parts LED Internal Roof Lamp

The 3714170-C0100 Side Reading Lamp Assembly is an original equipment (OE) interior light designed for medium- and heavy-duty commercial trucks in the Dongfeng Tianlong KL, Kingrun KR, and T-Lift KC series. Commonly installed near the bunk area or side door step, this lamp serves as a reading light for resting drivers, cabin ambient lighting, or step illumination, depending on vehicle configuration.

Engineered to meet the demands of 2026’s long-haul logistics environment, the latest version features a high-efficiency LED module with warm-white output (4000K–4500K), delivering bright yet non-glaring illumination while consuming minimal power. The unit is built from impact-resistant polycarbonate (PC) and flame-retardant ABS plastic, ensuring durability under constant vibration, temperature swings, and frequent use.

With multiple switch modes—ON / OFF / Door-Triggered (dome mode)—and compatibility with the standard 24V truck electrical system, it offers both convenience and safety. It can be directly retrofitted into older halogen-based systems without wiring modification
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  • 3714170-C0100

  • Dongfeng

Attribute Description
Part Number (OE) 3714170-C0100
Product Name Side Reading Lamp Assembly / Bunk Light / Step Illumination Lamp
Common Names Cab Interior Light, Bedside Lamp, Dome Light (partial function)
Application Position Lateral wall of cab (near sleeper berth), A-pillar, or above step area
Vehicle Brand Dongfeng Commercial Vehicle (DFCV)
Compatible Models Dongfeng Tianlong KL, Kingrun KR, T-Lift KC Series
Light Source Type Integrated LED (2026 models); Halogen bulb (older versions)
Rated Voltage 24V DC (standard for Chinese heavy trucks)
Lamp Housing Material Flame-retardant ABS base + high-transparency PC lens cover
Switch Type Toggle or push-button 3-position switch: ON / OFF / DOOR (auto-on when door opens)
Connector Type 2-Pin or 3-Pin waterproof plug (depending on switch functionality)
Design Standard Meets GB 4785 (automotive lighting), GB 8410 (flammability), DFCV OE specs
车内顶灯-1


车内顶灯-2


Parameter Specification
Operating Voltage Range 20–30 V DC (safe operation within normal truck battery fluctuations)
Power Consumption (LED Version) ~1.5–2.0 W
Luminous Output (Typical) 120–180 lumens
Color Temperature 4000K – 4500K (warm white, eye-friendly)
Service Life (LED) >30,000 hours (typical LED lifespan; no regular bulb replacement needed)
Halogen Replacement (Older Units) 24V / 5W or 10W wedge-base bulb (T5/T10)
Impact Resistance PC lens withstands drops and vibrations (IK07 rated)
Heat Dissipation Surface temperature <40°C after 2 hours of continuous use
IP Rating IP65 (dust-tight and protected against water jets)
Installation Method Screw-mounted or clip-in housing


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