Ultra-Narrow White LED Strip Lights – 4mm, 120 LEDs/m, 24V, SMD 2835
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At just 4mm wide, this white LED strip fits into mini aluminum channels, slim shelf edges and display details where a standard 8–10mm strip will not. It runs on 24V DC with 120 SMD 2835 LEDs per metre, 9.6W/m, CRI 97, about 832 lm/m, in 2200K, 2700K, 3000K, 3500K, 4000K, 5000K and 6500K. Cut points fall every 33.3mm.
Why Choose These LED Strip Lights?
4mm ultra-narrow PCB
The 4mm board fits micro-channels and narrow extrusions that wider strips cannot enter.
120 LEDs/m LED density
120 LEDs/m delivers even coverage without visible hot spots across the narrow beam path.
24V constant-voltage input
Runs on 24V DC — compatible with standard low-voltage drivers and dimmers.
SMD 2835 chip technology
SMD 2835 LEDs concentrate output on a minimal footprint for high efficiency in a slim profile.
White-light CCT selection
Multiple CCT options from 2200K to 6500K to match the visual requirements of the space.
IP20 or IP67 options
Choose open PCB for dry locations or encapsulated for damp environments.
Certified & compliant
CE, RoHS, CB, UKCA, PSE, and ErP marks support residential and commercial installs.
Custom project supply
Available in custom lengths, CCT, adhesive, connector, and packaging for project quantities.
Technical Specifications
| Catalog Model | 2835-120-4mm-24V-WHITE |
|---|---|
| LED Type | SMD 2835 |
| LED Density | 120 LEDs/m |
| PCB / Product Width | 4mm |
| Input Voltage | DC24V |
| Power | 9.6 W/m |
| Color Rendering | 97 |
| Luminous Output | 832 lm/m |
|---|---|
| Color / CCT | 2200K, 2700K, 3000K, 3500K, 4000K, 5000K, 6500K |
| LED Spacing | 8.3 mm (0.33 in) |
| Cutting Interval | 33.3 mm (1.31 in) |
| Standard Length | 5m Reel / 16.4ft |
| Waterproof Options | IP20 Non-Waterproof / IP67 Waterproof |
Cutting and Installation
Cut only at marked cut points. The narrow PCB is compatible with micro-channel extrusions — verify channel inner width before ordering. Use a constant-voltage driver rated to the specified input voltage and size it with at least 20% headroom.
What This Strip Works With
| Power supply | 24V DC constant-voltage driver. A full 5m reel uses about 48W (2A), so choose a driver rated at least 60W (20% headroom) |
|---|---|
| Dimming & control | SP631E single-color dimmer (Bluetooth app + remote) or E2 Series (RF / WiFi / Zigbee smart-home control) |
| Max load per controller | 24V: SP631E 3 reels, E2 6 reels. Wire each reel back to the controller separately rather than chaining reels end to end |
| Wall dimmers | A 120V wall dimmer only works through a dimmable driver that matches it (TRIAC/ELV or 0–10V); it cannot dim the strip directly |
| Mounting | Aluminum channel with an inner width of at least 4mm; allow a little extra for the IP67 silicone coating |
Not Compatible With
- 120V AC mains — always power it through a low-voltage DC driver
- 12V drivers — a 24V strip on 12V will run very dim
- RGB, RGBW and addressable (SPI) controllers — this is a 2-wire single-color strip and needs a single-color dimmer
- Outdoor or damp locations in the IP20 version — choose the IP67 option, and use a driver rated for the location
Recommended Applications
- Micro-channel extrusions, slim recessed profiles, and narrow display frames
- Furniture edge lighting, toe-kick details, and mirror perimeters where strip width is constrained
- Exhibition, retail, and hospitality display cases requiring discreet, low-profile illumination
Purchase Options and Customization
Select the required color temperature or color mode and the appropriate IP20 non-waterproof or IP67 waterproof construction. The standard length is 5m Reel / 16.4ft. Custom size, CCT, power, adhesive backing, cable, connector, packaging, and project quantities can be quoted separately.
Compliance
This product carries CE, RoHS, CB, UKCA, PSE, and ErP compliance marks. Please contact us for certification documents or project-specific compliance support.