SquareCarbon 21W Universal Motorcycle Turn Light

Product Positioning and Design Philosophy

The TDH SquareCarbon 21W Universal Motorcycle Turn Light is a signature product developed by the TDH brand for motorcycle riders who value distinctive aesthetics and powerful performance. As a China manufacturer with 38 years of industry experience, TDH always prioritizes riding safety and product reliability. The design inspiration of the TDH SquareCarbon comes from the square light elements of vintage motorcycles, merging the warning function of turn signals with rugged industrial aesthetics, making every turn a statement of individuality.

The name TDH SquareCarbon Universal Motorcycle Turn Light itself conveys the core advantages of this product: "Square" represents the unique square shape, and "Carbon" represents the premium carbon-fiber texture. Every set of TDH SquareCarbon Universal Motorcycle Turn Light embodies the deep thinking of the TDH R&D team regarding design, optical efficiency, and installation convenience. The square body and carbon-fiber texture ensure that the TDH SquareCarbon harmonizes perfectly with the rugged lines and metallic finish of Harley-Davidson motorcycles, maintaining the warning function of turn signals while serving as a visual focal point of the vehicle.

Light Source and Optical Performance

The TDH SquareCarbon 21W Universal Motorcycle Turn Light features a high-quality bulb light source with a total power of 21W and an operating voltage of 12V. Compared to low-power LED turn signals, the 21W high-power bulb of the TDH SquareCarbon delivers a much stronger, more penetrating beam, ensuring excellent visibility both during the day and at night. This powerful illumination is especially suitable for large cruiser models like Harley-Davidson, making turn signals stand out clearly in traffic.

The bulb in the TDH SquareCarbon utilizes a high-brightness filament design, reaching maximum brightness instantly upon activation. Compared to traditional low-power bulbs, the TDH SquareCarbon offers an overwhelming advantage in light intensity. In bright daytime conditions, the 21W powerful beam remains clearly distinguishable. At night or in low-light environments such as tunnels, the illumination of the TDH SquareCarbon becomes even more striking, effectively guiding traffic from both rear and side.

The transparent PC lens offers excellent impact resistance and optical transmittance, maximizing light output while protecting the bulb from external impacts. The optical design of the TDH SquareCarbon fully considers the light distribution angles of the square housing, ensuring effective warning performance under various weather conditions. Whether on city streets or highways, the TDH SquareCarbon delivers powerful illumination to enhance riding safety.

Universal Installation and Compatibility

The TDH SquareCarbon 21W Universal Motorcycle Turn Light is defined as a universal fit product, meaning the TDH SquareCarbon can fit the vast majority of motorcycles, scooters, electric vehicles, and light off-road models. The TDH SquareCarbon adopts an M8 bolt mounting method with a thread pitch of 9mm, one of the standard interface sizes used by many motorcycle turn lights on the market. The overall dimensions of the TDH SquareCarbon are 99.7mm in length, 57.6mm in width, and 39.4mm in height. The square shape ensures that the TDH SquareCarbon perfectly complements the rugged lines of Harley-Davidson and other cruiser models after installation, making it particularly suitable for users seeking a unique personality.

The TDH SquareCarbon also offers customization options: housing color available in black or carbon-fiber texture, lens color available in transparent, amber, or smoky gray. Users can freely mix and match according to their Harley-Davidson's color scheme and personal preference, creating a unique visual effect.

When installing the TDH SquareCarbon 21W Universal Motorcycle Turn Light, users simply remove the original turn light, align the TDH SquareCarbon with the mounting hole, and tighten the M8 bolt to secure it. For wiring, the TDH SquareCarbon uses standard polarity markings, with the gray wire as positive and the black wire as negative, connecting directly to the vehicle's 12V circuit for normal operation. The entire installation process requires no additional modification parts or specialized tools, allowing ordinary users to complete it with ease.

For businesses engaged in vehicle modification, the universal nature and unique square design of the TDH SquareCarbon offer more creative possibilities, particularly suitable for Harley-Davidson motorcycles, cruisers, and vintage custom builds. One set of TDH SquareCarbon can give a vehicle a distinctive rugged character.

Rigorous Certification and Quality Assurance

The TDH SquareCarbon 21W Universal Motorcycle Turn Light has obtained E-mark certification, the mandatory safety certification standard established by the European Union for vehicle lighting and signaling devices. Obtaining E-mark certification means that the TDH SquareCarbon meets European road use requirements in terms of optical performance, electromagnetic compatibility, and material durability. For customers exporting to the European market, choosing the TDH SquareCarbon means selecting a product that is legally compliant for market launch.

As a professional China manufacturer, TDH has established a strict quality control system throughout the production process. Every TDH SquareCarbon 21W Universal Motorcycle Turn Light undergoes multiple inspection procedures including illumination testing, waterproof testing, and vibration testing before leaving the factory, ensuring that every product delivered to customers performs stably and reliably. The TDH SquareCarbon comes with a one-year warranty, reflecting both TDH's confidence in product quality and its commitment to customer protection.

Material Structure and Durability

The housing of the TDH SquareCarbon 21W Universal Motorcycle Turn Light is made of carbon-fiber-textured ABS engineering plastic, with classic black also available. This material offers excellent impact resistance and weather resistance, capable of adapting to the demands of long-term outdoor use. The carbon-fiber texture finish delivers a premium sporty that perfectly complements the tough character of Harley-Davidson motorcycles, while also providing good scratch resistance. The lens portion of the TDH SquareCarbon uses transparent PC material, which offers extremely high impact resistance and excellent optical transmittance, preventing yellowing or brittleness even after prolonged sun exposure, ensuring the light output remains clear.

The overall dimensions of the TDH SquareCarbon 21W Universal Motorcycle Turn Light are 99.7mm in length, 57.6mm in width, and 39.4mm in height. The square form complements the carbon-fiber texture perfectly. The TDH SquareCarbon comes with a one-year warranty, reflecting both TDH's confidence in product quality and its commitment to customer protection.

Application Scenarios and Target Users

The TDH SquareCarbon 21W Universal Motorcycle Turn Light is suitable for various application scenarios:

First, Harley-Davidson motorcycle modification. For Harley-Davidson enthusiasts, the square design and carbon-fiber texture of the TDH SquareCarbon perfectly match the rugged lines and industrial aesthetics of Harley-Davidson motorcycles, making it an ideal choice for enhancing visual impact. The multiple housing and lens color combinations allow users to freely customize their ride, creating a unique personalized vehicle.

Second, urban commuting. In congested city traffic, the square shape and 21W powerful illumination quickly draw the attention of surrounding road users, making turning intentions clear and effectively reducing the risk of accidents.

Third, long-distance touring. Long rides involve exposure to various complex weather conditions and road surfaces. The powerful illumination of the TDH SquareCarbon ensures clear turn signals in all environments.

Fourth, vehicle modification and upgrade. For riders seeking personalized expression, the square design of the TDH SquareCarbon offers high recognition, adding a unique rugged style to any vehicle, particularly suitable for cruisers, street bikes, and custom builds, making modified vehicles truly stand out.

Packaging and Delivery Information

The TDH SquareCarbon 21W Universal Motorcycle Turn Light comes in individual color box packaging. Each package contains a pair of turn lights (one left and one right) along with mounting screws. The packaging design of the TDH SquareCarbon highlights the square and carbon-fiber elements, aligning with the product's style and suitable for both retail display and bulk shipping.

As a professional China supplier, TDH maintains ample inventory, allowing for quick shipment upon order confirmation. For customers requiring customized packaging or special labeling, TDH offers flexible customization services. TDH supports small trial orders, allowing customers to test the actual performance and illumination effect of the TDH SquareCarbon through samples before committing to larger purchases.

After-Sales Service and Brand Commitment

The TDH SquareCarbon 21W Universal Motorcycle Turn Light comes with a one-year warranty. If any quality issues arise during normal use, customers can contact the TDH after-sales service team, and TDH will respond promptly to assist in resolving the matter.

Since its establishment in 1988, the TDH brand has consistently focused on the research, development, and manufacturing of automotive and motorcycle parts. TDH operates an 8, 000-square-meter modern production facility, holds ISO9001 quality management system certification, and exports products to numerous countries and regions including Europe, North America, and South America. The TDH SquareCarbon 21W Universal Motorcycle Turn Light is just one product in the TDH lineup, but every product carries TDH's commitment to quality and respect for customers.

TDH believes that quality products speak for themselves. The TDH SquareCarbon 21W Universal Motorcycle Turn Light is carefully controlled at every stage from design, material selection, production, to inspection. Choosing the TDH SquareCarbon means choosing a reliable China manufacturer as a partner, and choosing peace of mind and trust.

TDH SquareCarbon 21W Universal Motorcycle Turn Light Parameter (Specification)