Register to unlock your exclusive B2B prices and start shopping. Sign up now!
  • Home
    • /
  • SPL Lighting

SPL Lighting - Page 51

Ba9s T10x28 28V 40mA 3.3Lm 1.12W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 28V 40mA 3.3Lm 1.12W C-2F 2Khrs Clear
0,235 €
This price is valid until 30.11.25
EAN: 8718739005808
MPN: 92843100
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 28V 50mA 1.4W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 28V 50mA 1.4W C-2F 2Khrs Clear
0,235 €
This price is valid until 30.11.25
EAN: 8718739005839
MPN: 92843300
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 24V 83mA 2W C-2F 10Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 24V 83mA 2W C-2F 10Khrs Clear
0,253 €
This price is valid until 30.11.25
EAN: 8718739005723
MPN: 92838928
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 24V 50mA 2.3Lm 1.2W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 24V 50mA 2.3Lm 1.2W C-2F 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739005679
MPN: 92838600
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 24V 208mA 70Lm 5W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 24V 208mA 70Lm 5W C-2F 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739005761
MPN: 92839300
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 30V 66mA 2W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 30V 66mA 2W C-2F 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739005921
MPN: 92845900
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 30V 20mA 0.6W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 30V 20mA 0.6W C-2F 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739005891
MPN: 92845100
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 28V 178mA 5W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 28V 178mA 5W C-2F 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739005860
MPN: 92843800
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 30V 166mA 5W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 30V 166mA 5W C-2F 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739005945
MPN: 92846200
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 30V 100mA 3W C-2F 2Khrs Clear - 10 Pcs
Order only
SPL Lighting
Ba9s T10x28 30V 100mA 3W C-2F 2Khrs Clear - 10 Pcs
0,272 €
This price is valid until 30.11.25
EAN: 8718739050587
MPN: 92846034
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 36V 20mA 0.72W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 36V 20mA 0.72W C-2F 2Khrs Clear
0,253 €
This price is valid until 30.11.25
EAN: 8718739005983
MPN: 92847300
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 60V 30mA 1.8W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 60V 30mA 1.8W C-2F 2Khrs Clear
0,29 €
This price is valid until 30.11.25
EAN: 8718739006232
MPN: 92856600
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 48-60V 66-83mA 4W C-2F 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 48-60V 66-83mA 4W C-2F 2Khrs Clear
0,272 €
This price is valid until 30.11.25
EAN: 8718739006164
MPN: 92855000
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 85V 35mA 3W C-3A 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 85V 35mA 3W C-3A 2Khrs Clear
0,453 €
This price is valid until 30.11.25
EAN: 8718739006317
MPN: 92863600
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 70V 20mA 1.4W CC-2F 1Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 70V 20mA 1.4W CC-2F 1Khrs Clear
0,344 €
This price is valid until 30.11.25
EAN: 8718739006287
MPN: 92860500
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 85V 47mA 4W C-3A 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 85V 47mA 4W C-3A 2Khrs Clear
0,471 €
This price is valid until 30.11.25
EAN: 8718739061392
MPN: 92863800
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 110V 45mA 5W C-5A 2Khrs Clear
Order only
SPL Lighting
Ba9s T10x28 110V 45mA 5W C-5A 2Khrs Clear
0,63 €
This price is valid until 30.11.25
EAN: 8718739006324
MPN: 92864400
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x28 110-130V WE 10Khrs White Green Neon PVC
Order only
SPL Lighting
Ba9s T10x28 110-130V WE 10Khrs White Green Neon PVC
0,471 €
This price is valid until 30.11.25
EAN: 8718739006560
MPN: 92896803
Package: 1
Box: 100
Pallet: 5000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G15x29 6V 666mA 4W C-2R 1Khrs Clear Gas Filled
Order only
SPL Lighting
Ba9s G15x29 6V 666mA 4W C-2R 1Khrs Clear Gas Filled
0,253 €
This price is valid until 30.11.25
EAN: 8718739006713
MPN: 92922800
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G15x29 12V 416mA 5W C-2R 1Khrs Clear
Order only
SPL Lighting
Ba9s G15x29 12V 416mA 5W C-2R 1Khrs Clear
0,272 €
This price is valid until 30.11.25
EAN: 8718739006775
MPN: 92931000
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G15x29 7V 410mA 2.87W C-2R 2Khrs Clear
Order only
SPL Lighting
Ba9s G15x29 7V 410mA 2.87W C-2R 2Khrs Clear
0,253 €
This price is valid until 30.11.25
EAN: 8718739006744
MPN: 92926600
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G15x29 12V 500mA 6W C-2R 1Khrs Clear Gas Filled
Order only
SPL Lighting
Ba9s G15x29 12V 500mA 6W C-2R 1Khrs Clear Gas Filled
0,38 €
This price is valid until 30.11.25
EAN: 8718739006799
MPN: 92932900
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G15x29 12V 833mA 10W C-2R 2Khrs Clear
Order only
SPL Lighting
Ba9s G15x29 12V 833mA 10W C-2R 2Khrs Clear
0,29 €
This price is valid until 30.11.25
EAN: 8718739006782
MPN: 92931100
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G15x29 14V 328mA 4.6W C-2F 7.5Khrs Clear
Order only
SPL Lighting
Ba9s G15x29 14V 328mA 4.6W C-2F 7.5Khrs Clear
0,272 €
This price is valid until 30.11.25
EAN: 8718739006812
MPN: 92934065
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G15x29 24V 83mA 2W C-2F 1Khrs Clear
Order only
SPL Lighting
Ba9s G15x29 24V 83mA 2W C-2F 1Khrs Clear
0,272 €
This price is valid until 30.11.25
EAN: 8718739006843
MPN: 92938900
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G17x30 3.6V 1000mA 3.6W 100hrs Clear Xenon
Order only
SPL Lighting
Ba9s G17x30 3.6V 1000mA 3.6W 100hrs Clear Xenon
0,96 €
This price is valid until 30.11.25
EAN: 8718739007048
MPN: 93411153
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G17x30 4V 800mA 3.2W 500hrs Clear Xenon
Order only
SPL Lighting
Ba9s G17x30 4V 800mA 3.2W 500hrs Clear Xenon
0,96 €
This price is valid until 30.11.25
EAN: 8718739007086
MPN: 93414553
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G17x30 2.4V 1000mA 2.4W 100hrs Clear Xenon
Order only
SPL Lighting
Ba9s G17x30 2.4V 1000mA 2.4W 100hrs Clear Xenon
0,96 €
This price is valid until 30.11.25
EAN: 8718739006997
MPN: 93405653
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G17x30 4V 550mA 2.2W 500hrs Clear Xenon
Order only
SPL Lighting
Ba9s G17x30 4V 550mA 2.2W 500hrs Clear Xenon
0,96 €
This price is valid until 30.11.25
EAN: 8718739007079
MPN: 93413753
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G17x30 3.6V 600mA 2.16W 100hrs Clear Xenon
Order only
SPL Lighting
Ba9s G17x30 3.6V 600mA 2.16W 100hrs Clear Xenon
0,96 €
This price is valid until 30.11.25
EAN: 8718739007031
MPN: 93410953
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G17x30 4.8V 604mA 2.9W 100hrs Clear Xenon
Order only
SPL Lighting
Ba9s G17x30 4.8V 604mA 2.9W 100hrs Clear Xenon
0,96 €
This price is valid until 30.11.25
EAN: 8718739007093
MPN: 93416753
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s G17x30 12V 333mA 4W 100hrs Clear Xenon
Order only
SPL Lighting
Ba9s G17x30 12V 333mA 4W 100hrs Clear Xenon
0,96 €
This price is valid until 30.11.25
EAN: 8718739007130
MPN: 93430953
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G18x32 2.4V 900mA 2.16W C-2R 1Khrs Clear
Order only
SPL Lighting
E10 G18x32 2.4V 900mA 2.16W C-2R 1Khrs Clear
0,52 €
This price is valid until 30.11.25
EAN: 8718739044753
MPN: 101705900
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x40 130V 23mA 3W C-5A 1Khrs Clear
Order only
SPL Lighting
Ba9s T10x40 130V 23mA 3W C-5A 1Khrs Clear
0,85 €
This price is valid until 30.11.25
EAN: 8718739007192
MPN: 94066100
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x40 85V 47mA 4W C-3A 1Khrs Clear
Order only
SPL Lighting
Ba9s T10x40 85V 47mA 4W C-3A 1Khrs Clear
0,74 €
This price is valid until 30.11.25
EAN: 8718739007185
MPN: 94063700
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G17x31 4V 900mA 3.6W C-2R 250hrs Clear Krypton
Order only
SPL Lighting
E10 G17x31 4V 900mA 3.6W C-2R 250hrs Clear Krypton
0,60 €
This price is valid until 30.11.25
EAN: 8718739007352
MPN: 101714650
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G17x31 2.5V 500mA 1.25W C-2R 500hrs Clear Krypton
Order only
SPL Lighting
E10 G17x31 2.5V 500mA 1.25W C-2R 500hrs Clear Krypton
0,60 €
This price is valid until 30.11.25
EAN: 8718739007314
MPN: 101707050
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G18x32 12V 416mA 5W C-2V 1Khrs Clear
Order only
SPL Lighting
E10 G18x32 12V 416mA 5W C-2V 1Khrs Clear
0,52 €
This price is valid until 30.11.25
EAN: 8718739041677
MPN: 101731000
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Ba9s T10x40 60V 50mA 3W C-2F 1Khrs Clear
Order only
SPL Lighting
Ba9s T10x40 60V 50mA 3W C-2F 1Khrs Clear
0,52 €
This price is valid until 30.11.25
EAN: 8718739007161
MPN: 94057000
Package: 1
Box: 100
Pallet: 2000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 2.5V 300mA 0.75W C-2R 2Khrs Clear
Order only
SPL Lighting
E10 T9x23 2.5V 300mA 0.75W C-2R 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739007536
MPN: 102306600
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 2.5V 200mA 0.5W C-2R 1Khrs Clear
Order only
SPL Lighting
E10 T9x23 2.5V 200mA 0.5W C-2R 1Khrs Clear
0,235 €
This price is valid until 30.11.25
EAN: 8718739007529
MPN: 102306400
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 2.2V 250mA 0.55W C-2R 1Khrs Clear
Order only
SPL Lighting
E10 T9x23 2.2V 250mA 0.55W C-2R 1Khrs Clear
0,199 €
This price is valid until 30.11.25
EAN: 8718739007512
MPN: 102303600
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 6V 100mA 0.6W C-2V 2Khrs Clear
Order only
SPL Lighting
E10 T9x23 6V 100mA 0.6W C-2V 2Khrs Clear
0,235 €
This price is valid until 30.11.25
EAN: 8718739007598
MPN: 102321700
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 12V 100mA 1.2W C-2V 2Khrs Clear
Order only
SPL Lighting
E10 T9x23 12V 100mA 1.2W C-2V 2Khrs Clear
0,235 €
This price is valid until 30.11.25
EAN: 8718739007659
MPN: 102330400
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 6V 200mA 1.2W C-2V 2Khrs Clear
Order only
SPL Lighting
E10 T9x23 6V 200mA 1.2W C-2V 2Khrs Clear
0,253 €
This price is valid until 30.11.25
EAN: 8718739007604
MPN: 102322200
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 6V 166mA 1W C-2V 1Khrs Clear
Order only
SPL Lighting
E10 T9x23 6V 166mA 1W C-2V 1Khrs Clear
0,235 €
This price is valid until 30.11.25
EAN: 8718739007574
MPN: 102320700
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 18V 100mA 1.8W C-2V 2Khrs Clear
Order only
SPL Lighting
E10 T9x23 18V 100mA 1.8W C-2V 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739007710
MPN: 102335700
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 12V 25mA 0.3W C-2V 2Khrs Clear
Order only
SPL Lighting
E10 T9x23 12V 25mA 0.3W C-2V 2Khrs Clear
0,217 €
This price is valid until 30.11.25
EAN: 8718739007635
MPN: 102329500
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 28V 60mA 1.68W C-2F 2Khrs Clear
Order only
SPL Lighting
E10 T9x23 28V 60mA 1.68W C-2F 2Khrs Clear
0,199 €
This price is valid until 30.11.25
EAN: 8718739007802
MPN: 102343500
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 30V 40mA 1.2W C-2F 5Khrs Clear
Order only
SPL Lighting
E10 T9x23 30V 40mA 1.2W C-2F 5Khrs Clear
0,272 €
This price is valid until 30.11.25
EAN: 8718739007833
MPN: 102345527
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 220-240V WE 10Khrs Clear Red Neon PVC
Order only
SPL Lighting
E10 T9x23 220-240V WE 10Khrs Clear Red Neon PVC
0,38 €
This price is valid until 30.11.25
EAN: 8718739008021
MPN: 102397800
Package: 1
Box: 100
Pallet: 5000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 2.5V 300mA 0.75W C-2R 10hrs Clear Lens End
Order only
SPL Lighting
E10 T9x23 2.5V 300mA 0.75W C-2R 10hrs Clear Lens End
0,326 €
This price is valid until 30.11.25
EAN: 8718739007451
MPN: 102106618
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 2.5V 200mA 0.5W C-2R 15hrs Clear Lens End
Order only
SPL Lighting
E10 T9x23 2.5V 200mA 0.5W C-2R 15hrs Clear Lens End
0,326 €
This price is valid until 30.11.25
EAN: 8718739007444
MPN: 102106418
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 T9x23 3.5V 200mA 0.7W C-2R 15hrs Clear Lens End
Order only
SPL Lighting
E10 T9x23 3.5V 200mA 0.7W C-2R 15hrs Clear Lens End
0,326 €
This price is valid until 30.11.25
EAN: 8718739007468
MPN: 102109618
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G15x29 6V 1000mA 6W C-2R 1Khrs Clear - 10 Pcs
Order only
SPL Lighting
E10 G15x29 6V 1000mA 6W C-2R 1Khrs Clear - 10 Pcs
0,362 €
This price is valid until 30.11.25
EAN: 8718739010949
MPN: 102923134
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G15x29 5V 150mA 0.75W C-2R 2Khrs Clear
Order only
SPL Lighting
E10 G15x29 5V 150mA 0.75W C-2R 2Khrs Clear
0,272 €
This price is valid until 30.11.25
EAN: 8718739010888
MPN: 102919700
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G15x29 6V 500mA 3W C-2R 2Khrs Clear Gas Filled
Order only
SPL Lighting
E10 G15x29 6V 500mA 3W C-2R 2Khrs Clear Gas Filled
0,272 €
This price is valid until 30.11.25
EAN: 8718739010901
MPN: 102922700
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G15x29 6V 1000mA 6W C-2R 1Khrs Clear Xenon
Order only
SPL Lighting
E10 G15x29 6V 1000mA 6W C-2R 1Khrs Clear Xenon
0,326 €
This price is valid until 30.11.25
EAN: 8718739062801
MPN: 103423153
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
E10 G15x29 19V 40mA 0.76W C-2V 2Khrs Clear
Order only
SPL Lighting
E10 G15x29 19V 40mA 0.76W C-2V 2Khrs Clear
0,272 €
This price is valid until 30.11.25
EAN: 8718739011045
MPN: 102936300
Package: 1
Box: 100
Pallet: 1000
Estimate delivery time at our warehouse (approx.): 2-4 weeks
Halogen lamp MR16 GU5.3 10W 12V 38° clear
Order only
SPL Lighting
Halogen lamp MR16 GU5.3 10W 12V 38° clear
1,90 €
This price is valid until 30.11.25
EAN: 8718739032378
MPN: 642731138
Package: 1
Box: 10
Pallet: 200
Estimate delivery time at our warehouse (approx.): 2-4 weeks