External · High Mast

High Mast Lighting

Precision optic high mast floodlights, 680W and 915W, up to 123,525 lm.

720W and 960W
92,480 and 123,525 lm
136 lm/W (680W), 135 lm/W (915W)
IP66
10 Years warranty

Order code AYR5B-680-750-120-D1-UB-GR

92,480 lm

CRI>70, 5000K. 120° circular optic. GR grey, C3 rated.

Measured file AYR5B-680-750-120: 98,571 lm at 690.86 W (142.7 lm/W).

720W nominal. 700 × 608 × 114 mm, 6 modules, 16.8 kg. Driver Inventronics SUM1K0. CE, RoHS, UL, cUL.

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135 lm/W
10 years
C5 marine
Zhaga Book 18

The Ayrton Series floodlight is engineered for high mast and large-scale floodlighting applications. It excels in demanding environments such as airport aprons, ports, railway yards, and motorway junctions - delivering a powerful, cost-effective lighting solution, even from challenging mounting positions.

With more than thirty optical configurations and three mounting styles, the Ayrton Series can be customised to meet the specific requirements of a wide range of settings. It is especially effective in ecologically sensitive areas, where precise control of light spill, low correlated colour temperature (CCT), and a 0% upward light ratio are essential.

Standard models offer C3-rated corrosion resistance, suitable for use near coastal areas, with an optional upgrade to a C5 finish for exposed coastal environments.

For enhanced efficiency, the Ayrton Series can be integrated with Kellwood's Wireless Pro smart control system, enabling remote lighting control and hardware monitoring - helping to lower both energy consumption and maintenance costs.

Kellwood also offers a full high mast lighting package, including base-hinged columns for easy installation and maintenance.

Performance summary
Series code	AYR5B (120W modules)
Nominal power	720W and 960W
System power	680W and 915W
Efficacy	136 lm/W (680W), 135 lm/W (915W) at CRI>70, 5000K
Lumen output	92,480 and 123,525 lm
Lumen maintenance	L70B10 ≥200,000 hours, L90B10 ≥60,000 hours (TM21 calculated)
Certification	CE, RoHS, UL, cUL
Corrosion resistance	C3, C5 optional
Warranty	10 Years

Sheet lumen at CRI>70, 5000K, with no modification: 680 92,480 lm, 915 123,525 lm. Another CRI, or a modification, still prints the order code and leaves the lumen blank. 28 measured files give 125.4 to 142.7 lm/W; the measured figure for the chosen optic shows under the code.

DOWNLOADS

Ayrton 5 series data sheet

Ayrton 5 series photometrics

Clear

Measured, AYR5B-680-750-150

Polar: solid green C0–C180, dashed blue C90–C270, dotted amber the plane through the brightest direction when it lies between them; rings at 25% steps of the peak. Isolux: the footprint on the floor with the fitting aimed straight down, contours at 50%, 25% and 10% of the brightest point, grid in mounting heights (H). Both are drawn from the first measured file for that optic.

DESIGN FEATURES

High Mast lights designed for PURPOSE

The Ayrton Series high mast lights are designed to deliver a robust lighting solution from high, often exposed, locations. Particular product features include: Modular Design - Every LED module is rigorously tested prior to assembly ensuring it conforms to IP66 rating. With each placement of the module it creates a chimney design, which provides improved thermal management to improve the products lifespan. Surge Protection - The PCB has TVS (Transient Voltage Suppressors) to protect the LED chip from voltage transients induced by lightning. This provides a surge protection of 10kV (or optional 20kV/10kA per ANSI/IEEE C62.41.2-2002). Marine Grade Product Finish - The standard finishes of grey, black and white can be upgraded to Akzonobel corrosion resistant polyester powder painted at 200μm thickness. It meets a 5000-hour salt spray certification per ASTM B117/ ISO 9227:2012. Optics - thirty varied optics are available which include: asymmetric, symmetric, backspill guard and frosted diffuser for lower glare.

TYPICAL APPLICATIONS

Airport Aprons

We supply specialist lighting for airport aprons which meets or exceeds all CAA airport apron lighting standards including lux levels, glare and ULR.

Docks

We have the product range and experience to supply lighting for docks, container terminals and ports, which requires high powered marine-grade lights.

Railway Yards

We offer specialist railway yard lighting design, providing high mast and LED floodlight solutions for National Rail and third-party operators.

Car Park

For car parks, Kellwood Lighting has considerable experience and offer a comprehensive range of robust, energy saving LED Lighting Solutions across the UK.

Sports pitches
Flood lighting

CASE STUDIES

GALLERY

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SPECIFICATIONS

Light source
Chip	Nichia 3535 219F
Distribution	Direct
CCT	5000K (2700K, 3000K, 4000K, 5700K optional)
CRI	≥70 (≥80, ≥90 optional)
SDCM	≤5
Diffusers	Clear (frosted optional)
Symmetric	10°, 20°, 40°, 60°, 90°, 120°, 150°
Asymmetric	IESNA Type 1S, 1M, 2S, 3S, 3M, 4S, 4VS, 4M
Optical accessories	Backspill guard

Electrical
Driver	Inventronics SUM1K0, one per light
Supply	100-277VAC
Frequency	50-60Hz
Power factor	>0.9
THD	<20%
Insulation	Class I
Surge	10kA
Electrical note	These electrical figures are for D1 drivers, unless the sheet says otherwise.

Environmental
IP	IP66
IK	IK10
Marine resistance	C3 (C5 optional)
Ambient	−40 to 50°C
Storage	−40 to 50°C

Physical
Connection	800mm cable
Body	Aluminium alloy and stainless steel fasteners
Finish	AkzoNobel powder coat (marine grade available)
Lens	UV stabilised polycarbonate

Options
Accessories	IP68 13A in-line connector (JB1, JB1-length), bird spikes (AYR-BS), safety cable (AYR-SF)

Each body (size and weight exclude bracketry)
680	720W nominal. 700 × 608 × 114 mm, 6 modules, 16.8 kg. Driver Inventronics SUM1K0. CE, RoHS, UL, cUL.
915	960W nominal. 825 × 608 × 114 mm, 8 modules, 19.9 kg. Driver Inventronics SUM1K0. CE, RoHS, UL, cUL.

Footnote 1: GR2, BL2 and WH2 have an upgraded AkzoNobel polyester powder coat for increased salt corrosion resistance.

Footnote 2: luminaires are supplied with D4i turned off. Zhaga Book 18 or NEMA socket configurations have D4i enabled as standard.

High Mast Lighting

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LIGHT DISTRIBUTION OPTIONS

1S

2S

3S

3M

4S

4M

4VS

10

20

40

60

90

120

150