Question 1

What are the key specifications of 63849?

Accepted Answer

63849: 2835, 128LEDs/m, DC 24V, 10 mm PCB, 3oz copper FPCB, cuttable 8LEDs/62.5mm. Full photometric data, wiring diagrams and test reports are available in the downloads section of this page.

Question 2

How long can a single run of this ultra long run LED strip be?

Accepted Answer

Maximum single run for this model is 10m. Feeding from both ends or using a mid-point tap halves the effective distance per segment, so a ultra long run LED strip can cover twice that length on one circuit when wired accordingly.

Question 3

Can DENO customise this ultra long run LED strip for a project?

Accepted Answer

Yes. DENO manufactures the Ultra-Long SMD Strips series as an OEM and ODM supplier: reel length, colour temperature, CRI grade, PCB width, waterproofing and private labelling can all be specified. Request a quote for lead time and project pricing.

Question 4

What limits how long an LED strip run can be?

Accepted Answer

Voltage drop and conductor current, not the LED itself. A long run LED strip combines low watts per metre, 2 oz or thicker copper and a higher bus voltage such as 24V, 36V or 48V to reach 20 m or more from one feed while staying inside a 3 percent drop.

Question 5

How much can a high efficacy LED strip cut energy use?

Accepted Answer

Moving from a typical 100 lm/W strip to a 180 to 200 lm/W high lumen LED strip roughly halves the wattage needed for the same lumen output. Over a long commercial run this also lowers the required driver size and helps the installation reach a better ErP energy class.

Question 6

What does a built-in IC do on a constant current LED strip?

Accepted Answer

Each segment carries its own constant current driver IC, so LED current stays fixed even as the bus voltage sags along the reel. The result is no visible brightness fade at the far end, per-segment protection, and freedom to feed power at either end or at any mid point of the run.

Question 7

What counts as a high efficiency LED strip in lumens per watt?

Accepted Answer

In 2026 a mainstream 24V 2835 board sits around 120-140 lm/W. A high efficiency LED strip starts at roughly 160 lm/W and DENO's top binned 2835 and 2110 boards are measured at up to 200 lm/W at 4000K Ra 80, LM-79 tested at 25 degrees Celsius. The figure is light-source efficacy of the tape itself, measured without the driver, which is exactly how the ErP energy label is calculated.

Question 8

What is the difference between high efficiency and high efficacy LED strip lights?

Accepted Answer

They describe the same measurement. Efficacy is the engineering term for lumens delivered per watt consumed; efficiency is how buyers and tender documents usually phrase it. DENO publishes lm/W per model so both audiences read the same number, and the ErP energy class printed on the reel is derived from it.

Question 9

Which ErP energy class can a high efficiency LED strip reach?

Accepted Answer

Class C is achievable on the best-binned 2835 and 2110 boards above 180 lm/W, class D covers the 160-180 lm/W band and most well-specified architectural tape lands in class E. High-CRI 95+ and full spectrum builds drop one or two classes because phosphor conversion costs lumens. Every DENO datasheet states the measured class so it can be reproduced by a notified body.

Question 10

Does a high efficiency LED strip run cooler and last longer?

Accepted Answer

Yes. Fewer watts per lumen means less heat into the FPCB, so junction temperature drops and L70 lifetime extends. Combined with 2 oz copper and a 99.9% pure copper foil the same brightness can be produced at 20-30% lower wattage, which also lets a single driver feed a longer run and keeps aluminium profiles below the touch-temperature limits used in hospitality projects.

Question 11

How much energy does a high efficiency LED strip save on a large project?

Accepted Answer

Take 500 m of cove lighting at 10 hours a day. A 130 lm/W board delivering 1000 lm/m draws about 7.7 W/m; a 190 lm/W board delivers the same output at about 5.3 W/m. Across 500 m that is 1.2 kW saved, roughly 4,380 kWh a year, and it usually removes one driver and one circuit from the electrical schedule as well.

Question 12

Can I get a high efficiency LED strip in 12V, 24V, 36V or 48V?

Accepted Answer

24V is the efficiency sweet spot and carries the full binned range. 12V is available where fixture space or existing drivers dictate it, at the cost of shorter single-feed runs. 36V and 48V constant-current boards keep the same lm/W while extending a single feed well past 20 m, which is where the real system efficiency gain shows up on long architectural lines.

Question 13

How long can a long LED strip run be on a single power feed?

Accepted Answer

A standard 24V constant-voltage tape is limited to about 5 m before the far end visibly dims. DENO's long-run boards combine 2 oz to 3 oz copper, 24V or 48V input and per-segment constant-current ICs, which takes a single feed to 20 m, and up to 50 m on 48V builds, with no measurable fall-off between the first and last metre.

Question 14

What are the longest LED light strips DENO manufactures?

Accepted Answer

Standard reels ship at 5 m, 10 m, 15 m, 20 m and 30 m, and OEM orders are produced as one continuous 50 m board with no mid-reel solder joint. Roll-to-roll plating is what makes that possible: the copper is deposited continuously, so length is not capped by panel size the way it is on die-cut FPCB.

Question 15

Do you supply extra long LED strip lights in 65.6 ft or 100 ft?

Accepted Answer

Yes. 65.6 ft (20 m) and 100 ft (30 m) are stock run lengths, and anything longer than 32 feet is supplied as one uncut board rather than two reels joined with a connector. Joints are the usual failure point on extra long LED strip lights, so removing them is the single biggest reliability gain on a large install.

Question 16

Why do long strip lights get dimmer at the far end, and how is it fixed?

Accepted Answer

Copper resistance drops the supply voltage along the tape, so LEDs near the end of the run receive less drive current. Three fixes work together: raise the voltage (24V, 36V or 48V), raise the copper weight (2 oz or 3 oz), and add a linear constant-current IC per segment so each segment holds its current regardless of the local voltage it sees.

Question 17

Which long outdoor LED strip lights are rated for wet locations?

Accepted Answer

Long outdoor LED strip lights are built IP65 silicone-coated, IP67 sleeved or IP68 fully potted, with DENO WAP™ conformal coating that stays clear instead of yellowing under UV. For facade and perimeter work the run length also has to survive thermal cycling, so outdoor boards use 3 oz copper and a wider PCB to spread heat.

Question 18

What makes long lasting LED strip lights actually last?

Accepted Answer

Lifetime is decided by junction temperature and solder-joint fatigue, not by the LED bin. DENO specifies 99.9% pure electroplated copper for lower thermal resistance, gold-wire bonding, and derated drive current — L90 at 50,000 hours on standard architectural builds, backed by a 5-year warranty.

Question 19

Can a long RGB or RGBIC strip run stay colour-consistent?

Accepted Answer

It can, provided each colour channel is current-regulated. On a plain long RGB LED strip the red die drops out first as voltage falls, so the far end shifts warm; a CC-regulated 24V colour board holds the mix over 15 m to 20 m. Addressable RGBIC runs additionally need data re-amplification roughly every 5 m.

Question 20

Can long LED light strips be cut to an exact length for a room or kitchen?

Accepted Answer

Yes. Cut units run from 12.5 mm to 100 mm depending on voltage and density, so a run can be trimmed to a drawing dimension on site, and DENO also pre-cuts and pre-wires to length at the factory for room, cove and kitchen installations. Ask for the cut unit in the quote — it decides how closely the finished line matches the millwork.

Question 21

Can you get LED strip lights longer than 32 feet in one run?

Accepted Answer

Yes — 32 feet (10 m) is where consumer tape stops, not where the physics stops. Past that the board needs constant-current regulation and 2 oz to 3 oz copper, and DENO supplies it as one uncut length with factory-fitted lead wires rather than two reels joined by a solderless connector, which would put the whole downstream current through a spring contact.

Question 22

Should I specify a 65.6 ft or a 100 ft LED strip run?

Accepted Answer

65.6 ft (20 m) is the practical ceiling for a 24V constant-current board with 2 oz copper on a single-end feed, and it covers most cove and corridor jobs with one driver. 100 ft (30 m) moves to 36V or 48V with 3 oz copper, a bigger driver and usually a mid-point tap, because at 24V the current would be high enough for cable losses to matter.

Question 23

When is a long RGBW LED strip better than RGB on a long run?

Accepted Answer

Whenever the same run also has to serve as everyday white light. Mixing white from three colour dies costs roughly twice the wattage for the same lux and renders skin and timber poorly — a real penalty over 20 m. RGBW adds a dedicated Ra 90+ white die at 2700K to 6500K, so white comes from a white source and the colour channels stay reserved for scenes.

Question 24

Is 36V or 48V better for a long LED strip installation?

Accepted Answer

48V once a single run passes about 30 m, 36V between 20 m and 30 m or where a 48V driver is unavailable. Both stay inside SELV limits and both cut voltage drop sharply against 24V; the trade-off is the cut unit, which grows from roughly 50 mm at 24V to 100 mm at 36V and up to 166.6 mm at 48V.

LED QTY	128LEDs/m
PART NO	DL-F28A64V24-63849-*
SMD TYPE	2835
CUTTABLE UNIT	8LEDs/62.5mm
DIMMABLE	Yes
LED PITCH	7.81mm
PCB WIDTH	10 mm
BEAM ANGLE	120°
LENGTH MAX	10m
COPPER FOIL	3oz
ON OFF TIMES	10000（test times）
CIRCUIT TYPE	C.C.
INPUT VOLTAGE	DC 24V
MIN BEND DIAMETER	Φ60mm
OPERATING TEMPERATURE	-25~40°C;Tc：75°C（max）

2835 Long Run Built-in IC LED Strip Light (#63849)

Overview

Description

Specifications

Applications

Request a quotation for #63849

Photometric Performance — CCT × CRI Efficacy Matrix

Grade DL (2nd Tier) · 4.8W/m

Grade DL (2nd Tier) · 7.2W/m

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