Question 1

What is the primary advantage of a constant current IC LED strip over a constant voltage strip?

Accepted Answer

The primary advantage is consistent light output and color temperature across the entire strip length, regardless of voltage drop or varying load conditions. Integrated ICs regulate current to each LED, preventing dimming or color shift, which is crucial for long runs or installations with complex wiring, ensuring uniform illumination throughout the application.

Question 2

How do constant current IC LED strips mitigate voltage drop issues in long runs?

Accepted Answer

Constant current IC LED strips incorporate integrated circuits that actively regulate the current supplied to each LED segment. This internal regulation compensates for voltage fluctuations along the strip, ensuring that each LED receives the correct current for consistent brightness and color, effectively mitigating the visual impact of voltage drop over extended lengths.

Question 3

Can constant current IC LED strips be dimmed, and what dimming protocols are compatible?

Accepted Answer

Yes, constant current IC LED strips can be dimmed. Compatibility typically includes PWM (Pulse Width Modulation) dimmers, which are common for LED applications. It is essential to use a compatible constant voltage power supply that supports the chosen dimming protocol (e.g., 0-10V, DALI, DMX) to ensure proper and smooth dimming performance.

Question 4

What are the typical cut unit lengths for DENO LED's constant current IC LED strip products?

Accepted Answer

The typical cut unit lengths for DENO LED's constant current IC LED strip products vary by model, generally ranging from 50mm to 100mm. These precise cut points are clearly marked on the FPCB, allowing for custom sizing while maintaining optimal electrical performance. Specific cut lengths are detailed in each product's technical specifications.

Question 5

Does a constant current LED strip really eliminate voltage drop?

Accepted Answer

Voltage still drops along the copper, but the per-segment constant current IC holds LED current fixed until the local voltage falls below its dropout point. Brightness therefore stays even end to end, and power can be injected at one end, both ends or any mid point of the run.

Question 6

What is a constant current LED strip?

Accepted Answer

A constant current LED strip carries a linear CC driver IC on the board that holds a fixed current through each segment regardless of the input voltage seen at that point. Brightness therefore stays flat along the run, instead of falling off with voltage drop the way a plain constant-voltage strip does.

Question 7

Constant current vs constant voltage LED strip — which is better?

Accepted Answer

Constant voltage is cheaper and fine for short runs under 3 m. Constant current is the right choice whenever the run is long, the copper is thin, the input voltage is unstable, or the installation is camera-facing — the IC absorbs supply variation and keeps every metre at the same luminous flux.

Question 8

Can a constant current LED strip be powered from both ends or mid-feed?

Accepted Answer

Yes. Because regulation happens per segment, DENO's CC boards accept single-end, both-ends and any mid-strip tap. Both-ends and mid-feed wiring halve the effective feed distance, which is how a single driver covers a long corridor or perimeter cove.

Question 9

Does a constant current LED strip dim without flicker?

Accepted Answer

It does when the driver is matched to it. Linear CC ICs dim smoothly on PWM down to about 1%, and at 16 kHz+ PWM the run is flicker-free on camera (low Pst LM and SVM). Analogue dimming of a CC board is not recommended below 20% because the IC needs headroom.

Question 10

How long can a constant current LED strip run be?

Accepted Answer

Up to 20 m and beyond on 24V or 48V builds with 2 oz copper, versus 5 m for a comparable constant-voltage board. The practical limit becomes the copper's current-carrying capacity and thermal design rather than perceived brightness fall-off.

Question 11

Can I order a custom constant current LED strip?

Accepted Answer

Yes — segment length, drive current, voltage, LED density, CCT/CRI, PCB width and copper weight are all configurable, and CC regulation can be combined with high-density, ultra-narrow or full-spectrum layouts on the same board.

Constant Current IC LED Strip | OEM Supplier | DENO

C.C. SMD Strips (IC Regulated) models & key specifications (35)

48V C.C. SMD Strips (IC Regulated) Models (2)

36V C.C. SMD Strips (IC Regulated) Models (2)

24V C.C. SMD Strips (IC Regulated) Models (31)

Other SMD LED Strip series

Constant Current LED Strip — Buyer Questions