U23I8/LEDN35DT1

U23I8/LEDN35DT1

recessed luminaire • square

application: Office, Healthcare, Education, Horeca, Retail, Leisure

housing: lacquered sheet steel

light source: LED LP • 4000 K

optics: Diffuser • acrylic (PMMA) microprism with diffuser foil • wide-angle

UGR classification: <= 19

luminous flux: 3400 lm

luminous efficacy: 117 lm/W

LLMF: 87% @ 50khrs (Tq=25°C)

photobiological safety: EN 62471: RISK GROUP 0 UNLIMITED

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DIALux ULD
Eulumdat LDT

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Product info

Mechanical properties

dimensions: 621 mm x 621 mm x 13 mm

ceiling modulation: M625 square

colour: RAL9016 - traffic white (textured)

type: individual luminaire

IP: IP20, IP54 from below

IK: IK06

wireless: No

ball proof: No

Light source

correlated colour temperature: 4000 K

Ra: 80

Electrical Properties

driver: DALI dimmable

power: 29 W

voltage: 220-240V

frequency: 50-60Hz AC

Dimensional drawing

Photometric data

luminous flux: 3400 lm

luminous efficacy: 117 lm/W

luminance @ 65°: 3000 cd/m²

power: 29 W

UGR classification <=: 19

LLMF: 87% @ 50khrs (Tq=25°C)

correlated colour temperature: 4000 K

Ra: 80

More information

Luminous intensities in cd

Intensity for 3400lm
Gamma	C0	C45	C90
0°	1401.9	1401.9	1401.9
5°	1398.6	1401.2	1403.3
10°	1389.2	1398.9	1408.3
15°	1373.2	1394.7	1417.9
20°	1346.4	1383.0	1425.2
25°	1301.7	1354.9	1415.7
30°	1236.0	1305.9	1383.7
35°	1148.9	1230.6	1319.8
40°	1027.9	1106.3	1192.5
45°	807.8	856.5	894.3
50°	595.1	619.9	566.7
55°	412.2	469.4	428.3
60°	238.6	337.4	341.8
65°	168.3	236.2	223.4
70°	174.5	175.9	145.1
75°	142.3	130.1	136.0
80°	104.4	96.4	88.1
85°	51.8	54.5	48.0
90°	0.0	0.0	0.0

Luminance

luminous flux: 3400 lm

luminous efficacy: 117 lm/W

luminance @ 65°: 3000 cd/m²

luminous area: 0.28 m²

Average Luminances (Cd/m²) for 3400lm
Gamma	C0	C30	C45	C60	C90
45°	4067	3918	4312	4670	4502
50°	3296	2845	3433	3851	3139
55°	2559	2399	2914	3129	2659
60°	1699	2060	2402	2047	2434
65°	1418	1592	1990	1508	1882
70°	1816	1420	1831	1858	1510
75°	1958	1842	1790	2022	1871
80°	2141	1954	1977	2033	1807
85°	2116	2240	2226	2013	1960

UGR

Corrected Glare Ratings for a Total Lamp Flux of 3400lm (S = 0.25H)

	Room Reflection Factors (%)
Ceiling Walls Floor	70 50 20	70 30 20	50 50 20	50 30 20	30 30 20	70 50 20	70 30 20	50 50 20	50 30 20	30 30 20
Room Dimensions	Viewed Crosswise					Viewed Endwise
X = 2H Y = 2H	15.0	16.7	15.3	17.0	17.2	15.9	17.6	16.2	17.9	18.1
Y = 3H	15.8	17.3	16.1	17.6	17.9	16.5	18.1	16.9	18.4	18.7
Y = 4H	16.3	17.7	16.6	18.0	18.3	16.9	18.3	17.2	18.6	18.9
Y = 6H	16.8	18.1	17.2	18.5	18.8	17.2	18.6	17.6	18.9	19.2
Y = 8H	17.0	18.3	17.4	18.7	19.0	17.4	18.7	17.7	19.0	19.3
Y = 12H	17.2	18.4	17.6	18.8	19.1	17.5	18.7	17.9	19.1	19.4
X = 4H Y = 2H	15.3	16.8	15.7	17.1	17.4	16.1	17.5	16.4	17.8	18.1
Y = 3H	16.3	17.5	16.7	17.9	18.2	17.0	18.2	17.4	18.5	18.9
Y = 4H	16.9	18.0	17.3	18.4	18.8	17.5	18.6	17.9	19.0	19.3
Y = 6H	17.7	18.6	18.1	19.0	19.4	18.0	19.0	18.5	19.4	19.8
Y = 8H	18.0	18.9	18.4	19.3	19.7	18.3	19.2	18.7	19.6	20.0
Y = 12H	18.2	19.1	18.7	19.5	19.9	18.4	19.3	18.9	19.7	20.1
X = 8H Y = 4H	17.2	18.1	17.7	18.5	18.9	17.7	18.6	18.2	19.0	19.5
Y = 6H	18.1	18.9	18.6	19.3	19.8	18.5	19.2	18.9	19.7	20.1
Y = 8H	18.6	19.3	19.1	19.7	20.2	18.8	19.5	19.3	19.9	20.4
Y = 12H	19.0	19.5	19.5	20.0	20.6	19.1	19.7	19.6	20.2	20.7
X = 12H Y = 4H	17.3	18.1	17.7	18.5	18.9	17.8	18.6	18.2	19.0	19.5
Y = 6H	18.2	18.9	18.7	19.4	19.8	18.5	19.2	19.0	19.7	20.2
Y = 8H	18.7	19.3	19.2	19.8	20.3	18.9	19.5	19.4	20.0	20.5
	UGR Variations with Observer Position for Luminaire Spacings S
S = 1.0H		+0.3		-0.3			+0.4		-0.5
S = 1.5H		+0.5		-0.8			+0.7		-0.8
S = 2.0H		+1.2		-1.1			+1.5		-1.3

Efficiency

Utilisation Factors according to IES (%)
	Room Reflection Factors (%)
Ceiling Walls Floor	80 50 20	80 30 20	80 10 20	50 50 20	50 30 20	50 10 20	30 50 20	30 30 20	30 10 20	0 0 0
RCR = 1	105	102	100	99	97	95	95	93	92	86
2	93	88	85	88	84	81	84	81	79	75
3	83	77	72	78	74	70	76	72	69	65
4	74	67	62	71	65	61	68	64	60	57
5	67	60	55	64	58	53	62	57	53	50
6	61	53	48	58	52	47	57	51	47	44
7	56	48	43	53	47	42	52	46	42	40
8	51	44	38	49	43	38	48	42	38	36
9	47	40	35	45	39	34	44	38	34	32
10	44	36	32	42	36	31	41	35	31	29

Utilisation Factors according to LiTG (%)
	Room Reflection Factors (%)
Ceiling Walls Floor	80 50 30	80 30 30	80 50 10	50 30 10	50 50 30	50 30 30	50 50 10	50 30 10	30 30 10	0 0 0
k = 0.60	53	45	50	43	51	44	49	43	42	36
0.80	65	56	61	54	62	55	59	53	52	46
1.00	74	65	68	61	70	63	66	60	60	53
1.25	83	75	76	70	78	72	74	69	68	62
1.50	90	82	81	76	84	78	79	74	73	67
2.00	98	90	87	82	91	85	84	80	79	74
2.50	104	97	92	87	96	91	89	85	84	79
3.00	108	103	95	91	100	96	92	89	88	83
4.00	113	108	98	95	103	100	94	92	90	86
5.00	116	112	100	97	106	103	97	95	93	89

Lifetime

Lifetime Data (Tq=25.0°C)
Time(khrs)	LLMF(%)	Cx(%)
10	97	n/a
20	95	n/a
30	92	n/a
40	89	n/a
50	87	n/a
60	85	n/a

Classifications

CIE: 594 / 877 / 968 / 1000 / 1000

CIE FLUXCODE: 0.59 / 0.88 / 0.97 / 1.00 / 1.00

BZ: BZ3

CAE: Symmetrical

DIN: A50 (Nach Arbeitsblatt 7)

DIN_U: Phi u = 1.00

DIN_SU: Phi su = 0.62

UTE: 1.00 D + 0.00 T

U23I8/LEDN35DT1

Quick downloads

Photometric data

Tender description

Product description

Product info

Mechanical properties

Light source

Electrical Properties

Dimensional drawing

Photometric data

Luminous intensities in cd

Luminance

UGR

Efficiency

Lifetime

Classifications

Downloads

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