Xitanium LED Drivers for VALDUR

From 230 V AC to regulated direct current.

An LED cannot be connected directly to the mains supply. It requires a regulated DC current to deliver its intended luminous output within the LED module’s specified operating range. The driver converts the incoming 230 V AC supply to this regulated output and must be used within the temperature, supply-voltage and transient limits stated in the product documentation.

VALDUR uses constant-current drivers. The driver regulates current through the LED module within its specified operating range as the diodes’ forward voltage varies. Constant current does not guarantee unchanged luminous flux; temperature and ageing affect the result. CLO is standard in VALDUR and is programmed for the selected configuration.

The driver sits in its own sealed compartment within the luminaire housing, thermally isolated from the LED module's heat path, and is field-replaceable as a service part without dismounting the entire luminaire from the column.

Signal Path

230 V AC

Nominal supply; permitted voltage and frequency range depends on the selected driver

LED Driver

Constant current · PF 0.98–0.99 at rated conditions · surge: 6 kV differential / 10 kV common mode

LED Module

Regulated DC current

Clean power is a procurement question.

Power factor (PF) 0.98–0.99 at rated conditions

The selected Signify Xitanium variants specify PF 0.98 or 0.99 at nominal mains voltage and rated load according to their respective datasheets. Power factor at partial load and during dimming must be verified for the selected driver and the operating point used in the project.

Total harmonic distortion (THD) — driver-dependent

THD varies with the exact driver, load and operating point. The value must therefore be taken from the datasheet for the offered configuration and must not be stated as a common limit for the entire VALDUR range.

Built for unstable grids.

Luminaires on columns in open terrain, along coastal roads, and in harbour areas can be exposed to voltage transients from lightning and grid switching. The specified Signify Xitanium LP, FP, SR, and CR drivers have built-in surge immunity up to 6 kV in differential mode and 10 kV in common mode according to their respective datasheets. These values apply to the driver and the stated test coupling; they do not imply protection against every overvoltage event or a direct lightning strike.

For installations with elevated risk, a separate external surge protection device (SPD) can be specified as an option. Its protection level, wiring arrangement, and any status indication must be verified for the model and installation specified for the project.

Every degree counts.

Electrolytic capacitors can limit driver service life. Temperature and ripple current affect ageing, but the relationship must come from the actual component data. A rule of thumb that life doubles with a 10 °C temperature reduction is not a general lifetime model for a complete driver. Placement, heat dissipation and electrical loading must be assessed together. Nichicon.

VALDUR’s SMC housing (see Materials) has low thermal conductivity compared with metallic housing materials. The luminaire’s complete thermal design, including component placement and heat dissipation, helps keep the driver within its specified temperature range. Actual operating temperature depends on load, ambient temperature, solar exposure and installation.

Four driver families for different control needs.

VALDUR can be supplied with Signify Xitanium drivers from four families. Each family contains multiple variants, and the selection depends on the project’s control, diagnostic, and connectivity requirements.

Standard

Xitanium LP

Lite Programmable

1–10 V, SimpleSet/NFC, and configurable DynaDimmer and CLO Lite. A night-time profile can contain up to five steps. The specified LP S1 variants are not DALI-2 or D4i.

Extended

Xitanium FP

Full Programmable

DALI-2, SimpleSet/NFC, DynaDimmer, LineSwitch/AmpDim, CLO, and configuration-dependent data and diagnostic functions. The specified FP variants are not D4i.

Sensor-Ready

Xitanium SR

Sensor Ready

Sensor Ready, DALI-2, and D4i with integrated bus/sensor power and configuration-dependent data, energy, and diagnostic functions. A compatible external node or sensor is specified separately.

Connected

Xitanium CR

Connected Ready

Connected Ready, DALI-2, and D4i with integrated power supplies and energy and diagnostic data. Wireless communication and remote monitoring require a separate compatible communication node and control system.

Specified Xitanium driver models

The table shows the eight drivers specified for VALDUR. The values are component data from the corresponding official Signify datasheets and do not automatically apply at every operating point or to the complete luminaire.

Comparison of eight specified Signify Xitanium driver models for VALDUR
Model and article number	Output power range	Programmable current range (AOC)	PF	THD	Inrush current at 230 V	Control and status
Xi LP 75W 0.2-0.7A S1 230V C133 sXt 929001654706 Verify with Signify (opens in a new tab)	3.5–75 W	200–700 mA	0.98	6.5%	43 A / 270 µs	1–10 V, DynaDimmer, and SimpleSet/NFC; not DALI-2 or D4i
Xi LP 40W 0.2-0.7A S1 230V C123 sXt 929002103106 Verify with Signify (opens in a new tab)	1.3–40 W	200–700 mA	0.99	7%	18.7 A / 195 µs	1–10 V, DynaDimmer, and SimpleSet/NFC; not DALI-2 or D4i
Xi FP 75W 0.2-0.7A SNLDAE 230V C133 sXt 929002872806 Verify with Signify (opens in a new tab)	2.5–75 W	200–700 mA	0.98	7%	43 A / 260 µs	DALI-2, DynaDimmer, LineSwitch/AmpDim, and SimpleSet/NFC; not D4i
Xi FP 40W 0.2-0.7A SNLDAE 230V C123 sXt 929004004006 Verify with Signify (opens in a new tab)	1.3–40 W	200–700 mA	0.99	7%	18 A / 280 µs	DALI-2, DynaDimmer, LineSwitch/AmpDim, and SimpleSet/NFC; not D4i
Xi SR 75W 0.2-1.0A SNEMP 230V C150 sXt 929002859506 Verify with Signify (opens in a new tab)	7–75 W	200–1050 mA	≥ 0.98	20%	49 A / 290 µs*	DALI-2, D4i-certified, and Sensor Ready
Xi SR 40W 0.2-1.0A SNEMP 230V C123 sXt 929002952506 Verify with Signify (opens in a new tab)	1–40 W	200–1050 mA	0.98	10%	24.6 A / 159.5 µs	DALI-2, D4i-certified, and Sensor Ready
Xi CR 40W 0.2-1.05A SDMP 230V C123 sXt 929003974806 Verify with Signify (opens in a new tab)	1–40 W	200–1050 mA	0.98	< 6 %	35.4 A / 122 µs	DALI-2, D4i-certified, and Connected Ready
Xi CR 75W 0.2-1.05A SDMP 230V C123 sXt 929003974906 Verify with Signify (opens in a new tab)	1.8–75 W	200–1050 mA	0.98	< 9 %	54.3 A / 138 µs	DALI-2, D4i-certified, and Connected Ready

PF and THD are Signify’s published component values at the rated conditions stated in each datasheet. They are not guaranteed across the full dimming range and are not measured values for the complete VALDUR luminaire.

AOC denotes the programmable output-current range. Lower stated dimming currents in the datasheets are not the AOC range.

Inrush current is stated as peak current and pulse duration at 230 V according to each datasheet. The values must be used together with the selected driver’s design-in guide when sizing circuits and protective devices.

* SR 75 uses IntelliStart, and the datasheet also specifies a subsequent pulse of 4 A / 2700 µs.

The eight datasheets state 6 kV differential mode and up to 10 kV common mode according to their respective stated test basis. The exact standard and test basis must be read in the selected driver’s datasheet.

The exact driver, programmed current, and document revision must be stated in the quotation, order, or project documentation.

Temperature protection depends on the selected driver.

The eight specified Xitanium drivers do not share a common external NTC/MTP function. The specified FP variants can use LED Module Temperature Protection (MTP) via an external NTC that monitors the LED-module temperature.

The driver’s internal temperature protection, such as DTL depending on variant, is a separate function and must not be confused with external NTC-based monitoring of the LED module. Function, NTC type, and setting must be verified against the datasheet and design-in guide for the selected driver.

Temperature protection depends on the selected driver.
Function	Availability and verification
MTP via external NTC	Available in the specified FP variants; NTC type and setting must follow the exact driver datasheet/design-in guide.
Driver temperature protection	Function and setting are variant-dependent and must be verified for the selected driver.

Driver in VALDUR — summary

Driver in VALDUR — summary
Parameter	Value
Input voltage	230 V AC nominal; permitted voltage and frequency range according to the selected driver
Regulation	Constant current
Power factor (PF)	0.98–0.99 at rated conditions, depending on driver
Total harmonic distortion (THD)	Driver- and operating-point-dependent; verify against the selected driver datasheet
Control interface	1–10 V (LP S1) or DALI-2 (FP/SR/CR); the specified SR/CR configurations are also D4i-certified. Fixed output depends on configuration.
Placement	Thermally isolated from LED module, IP66-sealed compartment
Replaceability	Service part, field-replaceable
Temperature protection	MTP via external NTC in specified FP variants; other protection is variant-dependent
Warranty	5 years

Relevant standards for LED drivers

IEC 61347-2-13:2024

Safety requirements for electronic controlgear for LED light sources. The 2024 edition has this broader scope; the applicable edition for a supplied configuration must be identified in its documentation.

EN 61000-3-2

Limits for harmonic current emissions in electrical supply systems.

EN 62384

Performance requirements for DC and AC-supplied electronic control gear for LED.

IEC 61547

EMC immunity requirements for general lighting equipment.

About LED drivers

What is the difference between constant-current and constant-voltage?

A constant-current driver regulates current while allowing output voltage to vary within its specified operating range. A constant-voltage driver is used with loads designed for that supply. VALDUR uses constant current. Neither the regulation principle alone nor a fixed current guarantees unchanged luminous flux over time.

Can the driver be replaced separately if it fails?

Yes. The driver is mounted as a separate service part and can be replaced in the field without dismounting the luminaire from the column or affecting the LED module.

How does the driver affect the luminaire's overall service life?

The driver can limit system service life, but the first limiting part depends on design and operation. Assess component data, operating temperature and electrical stresses separately from the LED module’s L90/B10. Read more about capacitors and drivers.

Are VALDUR's drivers compatible with existing DALI systems?

Yes, when VALDUR has been ordered with a compatible DALI-2 driver from the FP, SR, or CR family. Integration into an existing DALI system requires compatible system components, addressing, and project configuration.

What warranty applies to the driver?

The driver and other electronics are covered by POLAB’s five-year functional warranty. ALEM 09 applies only when specifically agreed and is separate from POLAB’s warranty. The luminaire housing is covered by a separate 20-year corrosion warranty; its full scope and exclusions are set out in the warranty terms.