Lighting Ballasts

A lighting ballast helps to safely start and operate lighting equipment such as fluorescent or HID lamps. They provide the lamp with the correct voltage at its initial start up and then adjusts the voltage input to maintain the safe running of the lamp during use. Our range of lighting ballasts includes electronic and electromagnetic products from some of the industry's leading brands, including Osram, Philips Lighting, Tridonic and our own RS PRO.

How do lighting ballasts work?

Without a ballast to limit its current as part of its circuitry, a fluorescent lamp would overheat and burn out within seconds, drastically reducing the bulb's operating life. The ballast counteracts this by briefly supplying an initially-high voltage that establishes an arc between the two lamp electrodes when the bulb is turned on, bringing the light to life. Once the arc is established, the ballast quickly reduces the voltage and regulates the electric current to produce a steady light output without overheating or overpowering the bulb, allowing it to remain lit without issue and therefore extending its performance life. For more information on how it works, you can consult our complete Lighting Ballasts Guide.

Types of Lighting Ballasts

The most common types of ballasts are magnetic and electronic, and they come in several start technologies to suit different purposes.

  • Magnetic Ballasts – Magnetic ballasts are located inside your light sockets between the plug and the light bulb and the power cable. They convert mains electricity into a correct voltage to start, make sure that you always match the wattage of the ballast to the wattage of the lamp.
  • Electronic Ballasts – Electronic ballasts alter the flow of electricity in the light bulb by using a series of induction coils that are separated from one another. They change the frequency of the electrical current without changing the voltage. While magnetic ballasts in fluorescent lamps work at a frequency of 60 Hz, electronic ballasts greatly increase that frequency of 20000 Hz. This high frequency ensures you will not see the lights flickering and will not hear a buzzing sound.

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Omschrijving Prijs Wattage Number of Lamps Ballast Type Supported Lamp Shape Supported Lamp Type Voltage Rating Dimmable High Frequency Length Width Height Minimum Operating Temperature Maximum Operating Temperature Dimming Protocol
RS-stocknr. 781-2960
Fabrikantnummer22185212
FabrikantTridonic
€ 41,10
Each
Aantal stuks
24 W - Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +60°C -
RS-stocknr. 781-2945
Fabrikantnummer22185148
FabrikantTridonic
€ 35,91
Each
Aantal stuks
14 W, 21 W, 28 W, 35 W - Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +75°C -
RS-stocknr. 873-5123
FabrikantnummerQT-ECO 1x18-24/220-240 L long
FabrikantOsram
€ 11,20
Each
Aantal stuks
20 W - Electronic CFL Compact Fluorescent 220 → 240 V No Yes 150 mm 22 mm 22mm -15°C +50°C -
Nieuw
RS-stocknr. 204-4279
Fabrikantnummer913713031166
FabrikantPhilips Lighting
€ 19,83
Each
Aantal stuks
14-35 W - Electronic TL5 - 220-240 V - - 360 mm 22 mm 30mm -25°C +60°C -
Nieuw
RS-stocknr. 203-5803
FabrikantnummerUVI/K0027A
FabrikantStanley Electric
€ 122,45
Each
Aantal stuks
22.5 W - Electronic Cable - 26.4 V - - 115 mm 43 mm 23mm -30°C +80°C -
RS-stocknr. 873-5035
FabrikantnummerQTP-OPTIMAL 1x18-40
FabrikantOsram
€ 14,43
Each
Aantal stuks
40 W - Electronic T5 Fluorescent 220 → 240 V No - 280 mm 30 mm 21mm -20°C +50°C -
Nieuw
RS-stocknr. 204-4158
Fabrikantnummer913713031466
FabrikantPhilips Lighting
€ 21,49
Each
Aantal stuks
18 W - Electronic TL - 220-240 V - - 280 mm 28 mm 40mm -25°C +60°C -
RS-stocknr. 669-2964
Fabrikantnummer638584
FabrikantOsram
€ 16,17
Each
Aantal stuks
5 W, 7 W, 9 W, 5.5 (HF) W, 7 (HF) W, 8 (HF) W - Electronic CFL Compact Fluorescent 220 → 240 V No Yes 80 mm 40 mm 22mm -15°C +50°C -
Nieuw
RS-stocknr. 204-4280
Fabrikantnummer913713028166
FabrikantPhilips Lighting
€ 19,83
Each
Aantal stuks
49 W - Electronic TL5 - 220-240 V - - 360 mm 22 mm 30mm -25°C +60°C -
RS-stocknr. 781-2923
Fabrikantnummer22185147
FabrikantTridonic
€ 32,79
Each
Aantal stuks
14 W, 21 W, 28 W, 35 W - Electronic T5 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +80°C -
RS-stocknr. 873-5117
FabrikantnummerQTi DALI 2x14/24/220-240 DIM
FabrikantOsram
€ 46,58
Each
Aantal stuks
22.5 W - Electronic T5, T8 Compact Fluorescent 220 → 240 V Yes - 423 mm 30 mm 21mm -25°C +75°C 1-10V
RS-stocknr. 243-2869
FabrikantnummerHFR136TLDII
FabrikantPhilips Lighting
€ 36,97
Each
Aantal stuks
36 W - Electronic TLD Fluorescent 220 → 240 V Yes Yes 360 mm 30 mm 22mm +5°C +50°C 1-10V
RS-stocknr. 775-4007
Fabrikantnummer22176405
FabrikantTridonic
€ 44,50
Each
Aantal stuks
10 W - Electronic T4 Fluorescent 220 → 240 V No Yes 103 mm 67 mm 31mm -25°C +70°C -
RS-stocknr. 873-5127
FabrikantnummerQT-ECO 2x5-11/220-240 S square
FabrikantOsram
€ 16,11
Each
Aantal stuks
21 W - Electronic CFL Compact Fluorescent 220 → 240 V No Yes 80 mm 40 mm 22mm -15°C +50°C -
RS-stocknr. 873-5048
FabrikantnummerPTi 70/220-240 I
FabrikantOsram
€ 31,62
Each
Aantal stuks
73 W 1 Electronic - HID 220 → 240 V No - 110 mm 75 mm 30mm -25°C +55°C -
RS-stocknr. 781-2926
Fabrikantnummer22185149
FabrikantTridonic
€ 21,82
Each
Aantal stuks
24 W - Electronic T5 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +70°C -
RS-stocknr. 781-2954
Fabrikantnummer22185156
FabrikantTridonic
€ 37,15
Each
Aantal stuks
54 W - Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +55°C -
Nieuw
RS-stocknr. 204-4285
Fabrikantnummer913713031666
FabrikantPhilips Lighting
€ 18,14
Each
Aantal stuks
18 W, 36 - Electronic TL - 220-240 V - - 280 mm 28 mm 30mm -25°C +60°C -
RS-stocknr. 781-2939
Fabrikantnummer22185153
FabrikantTridonic
€ 32,79
Each
Aantal stuks
49 W - Electronic T5 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +60°C -
Nieuw
RS-stocknr. 204-4159
Fabrikantnummer913700630766
FabrikantPhilips Lighting
€ 22,66
Each
Aantal stuks
22-42 W - Electronic TL5 - 220-240 V - - 103 mm 57.5 mm 30mm -25°C +50°C -
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