When working with RGBW SMD5050 LED strips, one of the most common questions we receive is about power consumption per metre. Our RGBW strips are rated at 15 watts per metre, but it’s important to understand that this figure refers to the combined total when all four channels—red, green, blue, and white—are on at full brightness.
A quick rule of thumb is to divide the total by four for an estimated usage per channel. However, this is just a general guide. The white channel often draws slightly more current than the others. For accuracy and safety, always build in a margin of headroom when calculating your power requirements.
From a wiring perspective, it’s essential to note that RGBW strips use a common anode system, where the 24V positive line carries the total current for all four channels. Each colour line returns through a separate negative channel. This means the positive connection must be rated to handle the full combined current, while each colour return only needs to support its own channel.
If you’re using connectors—such as 5 pin types rated at 3.5A per pin—you must consider the limit per pin, not the total. Even when your strip is within spec, undersized connectors or terminals can cause issues if not properly matched to the current load. A safe setup always factors in the total load carried through the common positive and ensures all connections are suitably rated.
For more guidance, visit the Related Products tab to find compatible drivers, connectors, and accessories. Our team is here to help with expert advice on safe and efficient installation.
