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 adjust the voltage input to maintain the safe running of the lamp during use. Our range of lighting ballasts includes both 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 lights ballast counteracts this by briefly supplying an initial high voltage that establishes an arc between the lamps two electrodes when the bulb is turned on, bringing the light to life. Once this arc is established, the ballast can then quickly reduce the voltage and is then able to regulate the electrical current to produce a steady and safe light output without overheating or overpowering the bulb. This function allows the bulb 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. 204-4284
Fabrikantnummer913713031866
FabrikantPhilips Lighting
€ 16,97
Each
Aantal stuks
58 W - Electronic TL - 220-240 V - - 280 mm 28 mm 30mm -25°C +60°C -
RS-stocknr. 669-2964
Fabrikantnummer4050300638584
FabrikantOsram
€ 16,17
Each
Aantal stuks
5 W, 5.5 (HF) W, 7 (HF) W, 7 W, 8 (HF) W, 9 W - Electronic CFL Compact Fluorescent 220 → 240 V No Yes 80 mm 40 mm 22mm -15°C +50°C -
RS-stocknr. 204-4277
Fabrikantnummer913713028066
FabrikantPhilips Lighting
€ 18,89
Each
Aantal stuks
49 W - Electronic TL5 - 220-240 V - - 360 mm 22 mm 30mm -25°C +60°C -
RS-stocknr. 873-5076
FabrikantnummerQT-FIT5 3X14 4X14 / 220-240v
FabrikantOsram
€ 15,86
Each
Aantal stuks
14 W - Electronic T5 Fluorescent 220 → 240 V No - 280 mm 40 mm 21mm -15°C +50°C -
RS-stocknr. 191-7738
Fabrikantnummer4008321537041
FabrikantOsram
€ 39,55
Each
Aantal stuks
- - Electronic - Fluorescent 220 → 240 V - - 103 mm 67 mm 31mm - - -