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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Description Price Wattage Ballast Type Supported Lamp Shape Supported Lamp Type Voltage Rating Dimmable High Frequency Length Width Height Minimum Operating Temperature Maximum Operating Temperature Dimming Protocol EU Energy Efficiency Rating
RS Stock No. 784-0515
Mfr. Part No.7840515-N
BrandParmar
PHP4,648.87
Each
units
400 W, 450 W Electromagnetic - SON 220 → 240 V No - 150 mm 96 mm 81mm - - - A2
RS Stock No. 667-7246
Mfr. Part No.HSA07223221
BrandParmar
PHP2,090.29
Each
units
70 W Electromagnetic - Ceramic Metal Halide, HPS, Metal Halide 230/240 V No - 107 mm 69 mm 59mm 0°C +75°C - A3
RS Stock No. 778-5281
Mfr. Part No.BE 236-2
BrandELT
PHP1,424.44
Each
units
18 W, 24 W, 30 W, 36 W, 39 W Electronic T5, T8, TC-L Fluorescent 220 → 240 V No Yes 230 mm 40 mm 28mm -20°C +50°C - A2
RS Stock No. 544-361
Mfr. Part No.HIDPVC150S
PHP4,968.39
Each
units
150 W Electronic - Ceramic Metal Halide 220 → 240 V No Yes 135 mm 75 mm 32mm -20°C +60°C - -
RS Stock No. 778-5317
BrandRS PRO
PHP2,361.16
Each
units
14 → 35 (T5) W Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 26mm -25°C +60°C - A2
RS Stock No. 873-5098
Mfr. Part No.QTP-DL 2X36-40/220-240
BrandOsram
PHP1,536.14
Each
units
90 W Electronic CFL Compact Fluorescent 220 → 240 V No - 280 mm 40 mm 28mm -20°C +50°C - A2
RS Stock No. 789-7933
Mfr. Part No.PCA 2X58 T8 ECO lp
BrandTridonic
PHP5,083.64
Each
units
2 x 58 W Electronic T8 Fluorescent 220 → 240 V Yes - 425 mm 30 mm 21mm -25°C +55°C DALI A1
RS Stock No. 873-5060
Mfr. Part No.QTP5 2X49/220-240
BrandOsram
PHP1,168.29
Each
units
92 W Electronic T5 Fluorescent 220 → 240 V No - 360 mm 30 mm 21mm -20°C +50°C - A2
RS Stock No. 667-7252
Mfr. Part No.HSA25223221-N
BrandParmar
PHP2,915.20
Each
units
250 W Electromagnetic - Ceramic Metal Halide, HPS, Metal Halide 230/240 V No - 167 mm 87 mm 72mm 0°C +75°C - A3
RS Stock No. 796-1909
BrandRS PRO
PHP4,321.25
Each
units
32 W Electronic - LED 220 → 240 V Yes - 103 mm 67 mm 21mm -25°C +50°C DALI -
RS Stock No. 873-5079
Mfr. Part No.QT-FIT5 1X14-35 / 220-240v
BrandOsram
PHP609.23
Each
units
35 W Electronic T5 Fluorescent 220 → 240 V No - 280 mm 30 mm 21mm -15°C +50°C - A2
RS Stock No. 775-3997
Mfr. Part No.22185217
BrandTridonic
PHP2,489.72
Each
units
36 W Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 28mm -25°C +60°C - A2
RS Stock No. 778-5329
BrandRS PRO
PHP2,120.76
Each
units
18 → 36 (T8) W, 24 → 36 (TC-F) W, 24 → 39 (T5 HO) W, 34 → 40 (TC-L) W Electronic T5 HO, T8, TC-F, TC-L Compact Fluorescent, Fluorescent 220 → 240 V No Yes 360 mm 30 mm 26mm -25°C +60°C - A2
RS Stock No. 789-7930
Mfr. Part No.PCA 2X36 T8 ECO lp
BrandTridonic
PHP5,394.10
Each
units
2 x 36 W Electronic T8 Fluorescent 220 → 240 V Yes - 360 mm 30 mm 21mm -25°C +70°C DALI A1
RS Stock No. 899-7854
Mfr. Part No.HF-P 3/414 TL5 III
PHP1,883.33
Each
units
- Electronic TL5 Fluorescent 220 → 240 V No Yes 280 mm 39 mm 21mm -25°C +60°C - A2
RS Stock No. 775-3988
Mfr. Part No.22185216
BrandTridonic
PHP2,489.72
Each
units
18 W Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +70°C - A2
RS Stock No. 796-1898
BrandRS PRO
PHP3,286.38
Each
units
80 W Electronic - LED 220 → 240 V Yes - 280 mm 21 mm 30mm -25°C +50°C - -
RS Stock No. 781-2945
Mfr. Part No.22185148
BrandTridonic
PHP2,234.75
Each
units
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 - A2
RS Stock No. 873-5076
Mfr. Part No.QT-FIT5 3X14 4X14 / 220-240v
BrandOsram
PHP1,068.83
Each
units
14 W Electronic T5 Fluorescent 220 → 240 V No - 280 mm 40 mm 21mm -15°C +50°C - A2
RS Stock No. 778-5326
BrandRS PRO
PHP2,135.43
Each
units
18 → 36 (T8) W, 18 → 36 (TC-F) W, 18 → 40 (TC-L) W, 24 and 39 (T5 HO) W Electronic T5 HO, T8, TC-F, TC-L Compact Fluorescent, Fluorescent 220 → 240 V No Yes 285 mm 30 mm 26mm -25°C +60°C - A2