Before You Order 30mm RGBW Pixel Lights, Confirm the Voltage on the Actual SKU
Looking for a row of individually controlled lights in an aluminum track? LIKELIGHT lists a 30mm RGBW point light—red, green, blue, plus a separate white channel. The page says each point uses a UCS2904 control chip. It may be worth sampling for that look, but do not choose its power supply from the title alone: the title says 12V, while the specification lists DC12V, 24V and 48V options.
The first order question is voltage, not the 30mm label
The product page identifies model L-C303-UCS2904 and part number L-C30-UCS2904-RGBW. It lists a 30mm diameter, RGBW SMD5050 LEDs, UCS2904, 0.96W per point, and optional DC12V / 24V / 48V operation. That is useful shortlist information, but it does not say which voltage is supplied in a particular order.
The page title and connector description mention 12V, while the voltage field lists three options. Ask LIKELIGHT to put the chosen input voltage, exact part number, connector pin labels and matching power arrangement together in the quotation or product drawing. Treat the title as a product-page heading, not as a confirmed order specification.
Check the light, track and controller as one sample
For mounting, the page says an aluminum profile or screw can be used and gives about 30–31mm as the best profile-hole size. It also lists a standard chain of 20 points at 8cm spacing, or customization. These are page statements, not a drawing tolerance or proof that every 30mm track fits.
Before multiplying the sample across a roofline or façade, fit the actual light into the intended profile, confirm the center-to-center pitch against the track, and test the control effect with the controller you plan to use. UCS2904 names the light's control IC; it does not, by itself, establish compatibility with every controller, RGBW channel order or connector pinout.
What a useful quotation should settle
Ask for one configuration per line: exact model/part number, selected voltage, RGBW mode and IC, connector/pinout drawing, chain length and center pitch, and the stated protection boundary. The page currently marks the product IP67; that rating should not be treated as a rating for field joints, power boxes or a completed installation.
Then ask the quote to separate the light chain, compatible power supplies/controllers and any track or connectors. Request a representative sample and agree what to check: physical fit, point spacing, white and color output, data behavior, connector labels and the installation environment. No need to lock a bulk quantity until that configuration is written down and the sample matches it.
When to pause before ordering
Pause if a project needs a voltage that has not been confirmed for the exact part number, if the controller or wiring is still unknown, or if the track opening and pitch are being inferred from '30mm'. Also pause if the installation is exposed to water and the quote does not define which parts of the assembled system are covered by the stated IP67 rating.
If the project has already fixed its supply voltage, send that value first. If it has not, send the run layout and the controller model; ask the supplier to propose a documented product version rather than choosing 48V simply because it is the highest listed option.
A short RFQ to send
Send the project use, approximate chain length or quantity, available supply voltage (or say it is not decided), controller model, track cross-section/opening and destination country. A photo or drawing of the track helps, but a complex engineering package is not required for the first question.
Ask LIKELIGHT to reply with the exact order code and voltage, wiring/pinout, chain pitch and length, product-versus-connection IP boundary, sample plan and complete system quotation. You can start from the 30mm RGBW UCS2904 product page or review the LED chain-light range.
