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Technical Guide

Wiring and Fusing 12V and 24V LED Work Lights

Close-up of the anti-scratch PC lens and side shooter beam pattern
Close-up of the anti-scratch PC lens and side shooter beam pattern

One Part Number for 12V and 24V Systems

A single SUNLITEC LED work light with a 9–32V or 10–30V input range can operate on both 12V and 24V vehicle electrical systems. This eliminates the need for separate part numbers, reduces inventory complexity, and simplifies procurement for fleet operators and OEMs who manage mixed vehicle fleets.

How Voltage Range Works in Practice

The driver circuit inside the lamp regulates input voltage across the operating range. At 12V, the driver draws more current to maintain the same output. At 24V, it draws less. The real power draw and amp draw figures on the data sheet reflect the actual current under load, not the nominal system voltage.

Sizing the Fuse from Amp Draw Figures

Use the real power draw and voltage to calculate the amp draw. This prevents nuisance tripping while protecting the wiring.

Deutsch DT Connector vs Bare Wire Lead

A Deutsch DT connector provides a sealed, vibration-resistant, and weatherproof connection. It is ideal for heavy machinery and off-road vehicles exposed to dust, water, and shock. A bare wire lead is simpler and lower cost but requires field splicing and sealing, increasing failure risk in harsh environments.

Why IP68 and IP69 Matter for Wiring

IP68 and IP69 rated connectors and housings prevent water ingress and withstand high-pressure washdowns. This is critical for forklifts, cranes, and mining machinery that operate in wet or dirty conditions. The sealing rating applies to the entire assembly, including the wiring entry point.

Matching Fuse and Wire Size to the Load

Use the amp draw figure to size both the fuse and the wire gauge. This ensures the circuit does not overheat and complies with electrical safety standards in North America and Europe.

Testing for Real-World Reliability

SUNLITEC tests every model in-house using a vibration test machine, salt spray chamber, and high-low temperature alternating humidity chamber. These tests confirm that the wiring, connectors, and fusing remain intact after exposure to shock, corrosion, and thermal cycling.

Buyer Questions

Questions on This Topic

Can I use the same part number on 12V and 24V vehicles

Yes, if the lamp has a 9–32V or 10–30V input range. The driver adjusts automatically to maintain stable output across both systems.

What is the difference between a Deutsch DT connector and a bare wire lead

A Deutsch DT connector is sealed, durable, and designed for harsh environments. A bare wire lead requires field termination and sealing, which increases the risk of moisture ingress and connection failure.

Are the fusing and wiring details included in the product data sheet

Yes. The real power draw, amp draw at 12V and 24V, and recommended fuse size are listed for every model. These values are measured in-house using an integrating sphere and verified under environmental stress tests.

Do you offer custom wiring configurations

Yes. SUNLITEC offers OEM and ODM services. You can request a specific connector type, wire length, or fuse rating during the design phase.

Apply This to Your Own Specification

Send the machine and the duty cycle. We will point at the models that match what you have just read.