How to Power Studio Lights with D-Tap and Barrel Cables

Quick answer

To power a compatible studio light from a battery, connect a D-Tap to barrel power cable between a 14.4/14.8V D-Tap battery and the light's 2.1/5.5mm barrel input. Verify voltage and polarity first, secure both ends, then power on. This setup is ideal for powering lights on location when AC outlets are unavailable.

What you need before you start

You will need a D-Tap battery (14.4V or 14.8V), a D-Tap to barrel power cable, and a light that accepts a 2.1/5.5mm barrel plug. The Westcott D-Tap to Barrel Power Cable is designed to pair the L60-B COB with most 14.4/14.8V D-Tap batteries. Check that your light's input voltage matches the battery output; the L60-B operates on 14.4/14.8V, so a standard 14.4V battery is appropriate. If your light requires a different voltage, do not proceed without a proper regulator.

Step 1: Match voltage and connector type

Confirm the battery output is 14.4V or 14.8V and the light's barrel input is 2.1mm inner diameter, 5.5mm outer diameter. Using a mismatched barrel size can cause a loose connection or damage. The D-Tap to Barrel Power Cable has an industry-standard D-Tap male connector on one end and a 2.1/5.5mm barrel plug on the other, so it fits common D-Tap batteries and compatible lights. If your battery is a P-Tap, it is compatible because D-Tap and P-Tap are interchangeable. Never force a connector; if it does not seat easily, you likely have the wrong size.

Step 2: Inspect cable and connectors

Before each use, inspect the cable for cuts, exposed wires, or bent pins. Check that the D-Tap connector's pins are straight and clean, and that the barrel plug's center pin is intact. A damaged cable can cause intermittent power or short circuits. If you see any damage, replace the cable. The D-Tap to Barrel Power Cable is 46.5 inches (118.1 cm) long, which gives you some slack for positioning the battery on a stand or belt; avoid pulling it taut.

Step 3: Connect to the battery first, then the light

With the battery powered off, plug the D-Tap connector into the battery's D-Tap port. It should click or seat firmly. Then plug the barrel connector into the light's power input. This order reduces the chance of a spark at the light's input. Some batteries have a rubber cover over the D-Tap port; slide it back before connecting. If your battery has multiple D-Tap ports, any will work as long as it can supply enough current for your light. The L60-B draws 60W, so check your battery's continuous output rating.

Step 4: Secure the connections and power on

Once both ends are connected, gently tug each connector to confirm they are seated. Use cable ties or hook-and-loop straps to strain-relieve the cable so it does not pull on the connectors. Turn on the battery, then the light. If the light does not power on, turn off the battery immediately and recheck the connections. A common mistake is to leave the cable dangling where it can be snagged; secure it along a stand or use a cable management clip. The L60-B is fully dimmable and flicker-free up to 1000 FPS, so you can adjust output without worrying about banding in slow-motion footage.

Step-by-step: Powering lights with D-Tap and barrel cables

1. Check voltage and connector size: Verify battery output is 14.4V or 14.8V and light input is 2.1/5.5mm barrel. Do not force a mismatched connector. Mismatched voltage can damage the light; if unsure, consult the manual.
2. Inspect cable and connectors: Look for cuts, bent pins, or damage. Replace damaged cables before use. A damaged cable can cause intermittent power or shorts.
3. Connect to battery first, then light: With battery off, plug D-Tap into battery, then barrel into light. Ensure firm seating. This order reduces spark risk at the light input.
4. Secure connections and power on: Strain-relieve the cable, then turn on battery and light. If no power, turn off and recheck. Secure cables to avoid snags; the L60-B is flicker-free up to 1000 FPS.

Product facts

• D-Tap to Barrel Power Cable: Pairs the L60-B COB with most 14.4/14.8V D-Tap batteries Ensures compatibility with common battery voltages used in the field.
• D-Tap to Barrel Power Cable: Industry-standard D-Tap male to 2.1/5.5mm barrel plug Fits standard D-Tap batteries and lights with a 2.1/5.5mm barrel input, reducing the need for adapters.
• D-Tap to Barrel Power Cable: For use with any D-Tap/P-Tap power source Works with both D-Tap and P-Tap batteries, giving you flexibility on location.
• D-Tap to Barrel Power Cable: Durable 46.5" (118.1 cm) cable Provides enough length to position the battery on a stand or belt without strain.