Aluminium Channel for Neon Flex — and Why Heat Decides LED Lifespan

What we supply

Two channel profiles and one end cap pack, all for Neon Flex 1010.

Straight channel is for runs that follow a straight line — a wall detail, a soffit edge, a signage baseline. It holds the neon flex in a clean line and gives the run a defined edge.

Flexible channel is for curves. Neon flex bends along one axis, and the flexible profile follows it without forcing the extrusion against its bend direction.

End caps seal the cut ends. This is not cosmetic — see the last section.

All three are listed in the add-on section of the Neon Flex 1010 product page.

They are charged per piece, and because pieces are not metres, adding them does not change which lead-time band your order falls into. A hundred metres of neon flex with a hundred channels still dispatches on the 1–150 metre band.

How LEDs actually fail

A filament lamp fails suddenly. An LED does not. It fades.

Rated life figures are almost always L70 figures, meaning the point at which output has dropped to 70% of original. The LED is still lit. It is just visibly dimmer, and often slightly different in colour.

What determines how fast that happens is junction temperature: the temperature at the semiconductor itself. Run an LED cool and it holds output for years. Run it hot and the same LED reaches L70 in a fraction of the rated time.

The manufacturer's rated life assumes the LED is kept within its designed temperature range. Nothing about that assumption is automatic once the product leaves the factory.

Where the heat goes

An LED converts a meaningful proportion of its input power into heat. That heat leaves by conduction — through the LED package, into the circuit board, then into whatever the board is touching.

Touching aluminium, the heat spreads along the extrusion and dissipates into the air across a large surface area. The product runs close to ambient.

Touching plasterboard, timber, or a plastic pelmet, the heat has nowhere to go. Those are insulators. Heat accumulates, junction temperature rises, and a decline that should take years takes months.

The failure mode is why this gets missed so often: nothing breaks. The installation is signed off, it looks correct, and eighteen months later somebody notices the run is dimmer and slightly warmer in colour. By then the cause is long forgotten.

Neon Flex is less exposed to this

Neon Flex 1010 arrives as a sealed extrusion. The body provides some thermal mass and a reasonable surface area on its own, which is why it does not require a channel to function.

For neon flex the channel is doing three other jobs: holding a clean line, defining the edge, and giving you a fixing method that does not rely on adhesive alone. Those are mounting reasons rather than survival reasons.

Bare strip and COB strip: what to look for

Bare LED Strip and COB LED Strip are flat boards. They have very little thermal mass and almost no surface area of their own. For any permanent installation they should be mounted on aluminium.

We do not supply channel for either. Most electrical wholesalers and lighting distributors in Hong Kong carry generic profile, and it is inexpensive. Specify it at design stage rather than leaving it to site.

Three things matter when choosing, in this order:

Contact with the board. The channel only works if the strip is in firm, flat contact with the aluminium along its whole length. A strip that has lifted mid-bay is not being cooled there.

Enough aluminium. A very thin decorative profile has less thermal mass and less surface area than a substantial one. The higher the load, the more metal you want.

Fit. Channel is sized for a strip width. Strip that rattles around in an oversized channel makes poor thermal contact.

Recessed channel plastered into a ceiling has less airflow than surface-mounted channel. It still works far better than no channel, but be conservative where the profile is fully buried.

The other job a channel does: hiding the dots

Bare strip is a line of individual LEDs with gaps between them. Viewed directly, or reflected in a glossy surface, it reads as a row of bright dots rather than a line of light.

A channel with a frosted or opal diffuser turns that into a continuous line. Entirely a visual question, but it is the difference between an installation that reads as architectural lighting and one that reads as a strip of tape.

Diffusion costs light. Specify based on delivered light, not raw output.

COB strip already reads as a continuous line without a diffuser, and Neon Flex 1010 has diffusion built into the extrusion, so this applies mainly to bare strip.

End caps and the IP67 question

Neon Flex 1010 is rated IP67. That rating describes the extrusion as manufactured — a sealed body.

The moment a run is cut, the cut end is open and the board is exposed. An IP67 product with an open cut end is an IP20 installation, whatever the datasheet says.

End caps close that. Fitted and sealed properly, they restore the rating at the termination. Left off, or pushed on without sealant, they do not.

We supply neon flex cut to your specified length, so factory ends are already terminated. End caps matter when you cut on site, and when you do, budget for sealing them properly.

Where to find them

All three accessories are in the add-on section of the Neon Flex 1010 product page. Prices are published, there is no minimum order, and pieces do not affect your lead-time band.

We do not supply drivers or controllers. Most contractors and M&E consultants already have a preferred brand and dimming protocol, and that decision belongs with the electrical design.