LED Retrofit T8 (G13) – fluorescent tube replacementLED tubes T8 with G13 socket replace T8 fluorescent tubes (18–58 W) directly in existing luminaires. They offer 50% less energy consumption, up to 50,000 h service life and flicker-free light without warm-up time – the most efficient way to modernise existing office, workshop and warehouse lighting. Lengths and wattages: 600 mm / 9 W (800 lm, replaces 18 W T8), 900 mm / 14 W (1200 lm, replaces 30 W T8), 1200 mm / 18 W (1600 lm, replaces 36 W T8), 1500 mm / 22 W (2000 lm, replaces 58 W T8). Conversion methods: Retrofit (compatible with existing magnetic/electronic ballast + starter), Bypass ballast (bridge ballast, direct 230 V), Direct wiring. Colour temperatures: 3000 K, 4000 K, 6500 K. Retrofit vs. bypass: retrofit tubes are the simplest solution (replace starter, change tube). Bypass tubes require a one-time electrical installation but deliver higher efficiency (no losses from ballast). For new builds and renovations: direct LED batten lights without T8 tubes recommended. Applications: offices, warehouses, workshops, schools, supermarkets, hospitals, production halls. For large projects (complete building or hall conversion): project quote with payback calculation on request – typical payback period 2–4 years. Questions about socket, colour temperature or bulk orders? 07666 / 88499-0 or sales@industry-electronics.com |
Leading Manufacturers: ✓ Osram ✓ Philips ✓ Samsung LED ✓ Ushio ✓ Radium ✓ Sylvania ✓ Ledvance ✓ Megaman |
LED Retrofit T8 from Goobay
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Goobay 54555 LED starter - for LED tube T8
Goobay LED starter, jewelry packaging suitable for tandem circuits bayonet pin spacing 13 mm Operating voltage: 100 - 240 V Power supply: 100-240 V AC Diameter: 21 mm Length: 39.5 mm Lieske Part No.: 729594 Mfg Part No: 54555 Type: LED Starter |
1,05 EUR
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Delivery time from supplier's stock (ca.) 12 workdaysinfo_outline
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LED Retrofit T8 from Synergy 21
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Synergy 21 LED Tube T8 Serie 120cm, IP20 Sockel
LED TUBE Sockel T8 120cm für einseitig gespeiste Röhren Höhe (o. Fassung): 3,5 cm Höhe (m. Fassung): 6 cm Breite: 4,5 cm T8 Sockel in 120cm Länge für LED Tubes, ohne Starter und ohne ...Lieske Part No.: 291170 Mfg Part No: S21-LED-000501 |
5,84 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Series Acc 150cm, IP20 double-Sock
T8 LED TUBE base height 150cm suitable for single end fed RöhrenFür 2 LED tubes (not amended): 3.5 cm Height (with version): 6 cmWidth: 4.5 cm (foot) 9cm (bracket) T8 base in 150cm length for LED ...Lieske Part No.: 422464 Mfg Part No: S21-LED-000503 |
13,76 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Series Acc 150cm, IP20 socket
150cm T8 LED Tube Socket for single end fed tube height (without socket): 3.5 cm Height (with version): 6 cmWidth: 4.5 cmT8 base 150cm in length for LED Tubes, without starter and ballast withoutLieske Part No.: 971854 Mfg Part No: S21-LED-000504 |
-27% 7,53 EUR 10,26 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 series 120cm, IP20 double-pedestal
LED TUBE T8 120cm base for single end fed tubes suitable for 2 LED Tubes height (o version.): 3.5 cm height (m version.): 6 cm Width: 4.5 cm (foot) 9cm (holder) T8 base in 120cm length for LED Tubes, ...Lieske Part No.: 129700 Mfg Part No: S21-LED-000802 |
6,60 EUR
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Delivery time on requestinfo_outline
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Synergy 21 LED Tube T8 Serie 1X0cm, IP55 Sockel Montageklammer
Montageklammer für IP55 Sockel auch für Doppelsockel und V2 Für 120cm und 150cm geeignet 2 StückLieske Part No.: 1384697 Mfg Part No: S21-LED-00240170 |
1,27 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Serie 1X0cm, IP55 Sockel Deckelklammer
Montageklammer für IP55 Sockel auch für Doppelsockel und V2 Für 120cm und 150cm geeignet 2 StückLieske Part No.: 1384698 Mfg Part No: S21-LED-00240171 |
1,27 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Serie 1X0cm, IP55 Sockel PG Verschraubung
PG Verschraubung für IP55 Sockel Acuh für Doppel Sockel und V2 Für 120cm und 150cm geeignet 1 StückLieske Part No.: 1384699 Mfg Part No: S21-LED-00240172 |
1,27 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Serie 120cm, IP55 Doppel-Sockel V2
LED TUBE Sockel T8 120cm für einseitig gespeiste Röhren (Wannenleuchte) Für 2 LED Röhren geeignet Schutzklasse IP55, PC Cover T8 Sockel in 120cm Länge für LED Tubes, ohne Starter und ohne ...Lieske Part No.: 1066888 Mfg Part No: S21-LED-0240161 |
16,59 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Serie 150cm, IP55 Doppel-Sockel V2
LED TUBE Sockel T8 150cm für einseitig gespeiste Röhren (Wannenleuchte) Für 2 LED Röhren geeignet Schutzklasse IP55, PC Cover T8 Sockel in 150cm Länge für LED Tubes, ???????ohne Starter und ohne ...Lieske Part No.: 1066889 Mfg Part No: S21-LED-0240162 |
21,81 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Serie 120cm, IP55 Sockel V2
LED TUBE Sockel T8 120cm für einseitig gespeiste Röhren (Wannenleuchte) Schutzklasse IP55, PC Cover T8 Sockel in 120cm Länge für LED Tubes, ohne Starter und ohne Vorschaltgerät Größe: ...Lieske Part No.: 1066890 Mfg Part No: S21-LED-0240163 |
13,21 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Serie 150cm, IP55 Sockel V2
LED TUBE Sockel T8 150cm für einseitig gespeiste Röhren (Wannenleuchte) Schutzklasse IP55, PC Cover T8 Sockel in 150cm Länge für LED Tubes, ohne Starter und ohne Vorschaltgerät Größe: 1562*35*35MMLieske Part No.: 1066891 Mfg Part No: S21-LED-0240164 |
18,12 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 replacement starter
Replacement starter for the LED TubesLieske Part No.: 535232 Mfg Part No: S21-LED-G00032 |
-26% 2,51 EUR 3,41 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 SL series 1047mm, 18W neutral white
LED tube (tube) fed on one side, base cannot be rotatedRecording: 18 watts Lumen: 2400 Lm, 130Lm/W Input: 100-240VAC, 50/60HZ Light color: neutral white Kelvin: 4000K±250 CRI: >80 Beam angle: ... Lieske Part No.: 1788750 Mfg Part No: S21-LED-SL1047201 |
11,78 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 150cm NW, 200LM/W, 16W/24W switchable
LED tube (tube)fed on one side Consumption: 16 and 24 watts Lumen: 200lm/W, 3200/4800 Lm Input: 100-240VAC, 50/60HZ Light color: neutral white Kelvin: 4000K±250 CRI: >80 Beam angle: 140° Length: ... Lieske Part No.: 115645 Mfg Part No: S21-LED-SL240005 |
18,64 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 150cm KW, 200LM/W, 16W/24W switchable
LED tube (tube)fed on one side Consumption: 16 and 24 watts Lumen: 200lm/W, 3200/4800 Lm Input: 100-240VAC, 50/60HZ Light color: cold white Kelvin: 6000K±250 CRI: >80 Beam angle: 140° Length: ... Lieske Part No.: 1156450 Mfg Part No: S21-LED-SL240006 |
18,64 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 120cm KW, 200LM/W, 10W/15W switchable
LED tube (tube)fed on one side Consumption: 10 and 15 watts Lumen: 200lm/W, 2000/3500 Lm Input: 100-240VAC, 50/60HZ Light color: cold white Kelvin: 6000K±250 CRI: >80 Beam angle: 140° Length: ... Lieske Part No.: 1156451 Mfg Part No: S21-LED-SL240007 |
15,65 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 120cm NW, 200LM/W 10W/15W switchable
LED tube (tube)fed on one side Consumption: 10 and 15 watts Lumen: 200lm/W, 2000/3500 Lm Input: 100-240VAC, 50/60HZ Light color: neutral white Kelvin: 4000K±250 CRI: >80 Beam angle: 140° Length: ... Lieske Part No.: 1156452 Mfg Part No: S21-LED-SL240008 |
15,65 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 series 120cm, IP65 double base
LED TUBE socket T8 120cm for tubes fed on one side (tub light)Protection class IP65 Dimensions 1270x110x72mm Material: PC clips made of metal, 10 pieces incl. cabling for tubes fed on one side ... Lieske Part No.: 1124899 Mfg Part No: S21-LED-T00004 |
12,89 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Series 150cm, IP65 Base
LED TUBE socket T8 150cm for single-sided fed tubes Protection class IP65 Dimensions 1565x70x75mm Material: PC Clips made of metal, 12 pieces incl. wiring for single-sided fed tubes without starter ...Lieske Part No.: 1124898 Mfg Part No: S21-LED-T00005 |
13,21 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Synergy 21 LED Tube T8 Serie 150cm, IP65 Doppel-Sockel
LED TUBE Sockel T8 150cm für einseitig gespeiste Röhren Schutzklasse IP65 Maße 1570x110x72mm Material: PC Clips aus Metal, 12 Stück incl. Verkabelung für einseitig gespeiste Röhren ohne Starter ...Lieske Part No.: 291338 Mfg Part No: S21-LED-T0006 |
17,43 EUR
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Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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FAQ
Retrofit or bypass – which conversion method is better?
Retrofit: low effort, immediate replacement. Bypass: higher efficiency (no ballast losses), longer system life. For individual office replacements: retrofit. For complete hall conversion: bypass.
Can I operate T8 LED tubes with any ballast?
Retrofit tubes: compatible with most electronic and magnetic ballasts. But check the manufacturer's compatibility list – not every ballast is approved for LED retrofit.
How much do I save through T8 LED conversion?
Example: 100 luminaires with 2×36 W T8 = 7.2 kW. With LED 2×18 W: 3.6 kW. At 10 h/day, 250 days/year, EUR 0.30/kWh: EUR 2,700 savings per year. Typical payback 2–3 years.
Do I need an electrician for T8 LED conversion?
Retrofit: replace starter + change tube – can be carried out by trained personnel. Bypass wiring: must be carried out by an approved electrician in accordance with VDE regulations.
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