Lighting Ballasts

A lighting ballast helps to safely start and operate lamps such as HID and fluorescent lamps. They provide it with the correct voltage for start-up and the running of the lamp.

How do they work?

Without a ballast to limit it is current, within seconds a fluorescent lamp would overheat and burn out. The ballast briefly supplies high voltage to establish an arc between the two lamp electrodes. Once the arc is established, the ballast quickly reduces the voltage and regulates the electric current to produce a steady light output. For more information on how it works, you can consult our complete Lighting Ballasts Guide.

Types of Ballasts

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

  • Magnetic Ballasts – These 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 – These 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.


...
Read more Read less

Filters

Viewing 1 - 20 of 76 products
Results per page
Description Price 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 Stock No. 775-3994
Mfr. Part No.22185219
BrandTridonic
HK$310.25
Each
units
18 W 3 Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +70°C -
RS Stock No. 781-2967
Mfr. Part No.22185211
BrandTridonic
HK$241.16
Each
units
14 W 3, 4 Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +60°C -
RS Stock No. 778-5281
Mfr. Part No.BE 236-2
BrandELT
HK$203.56
Each
units
18 W, 24 W, 30 W, 36 W, 39 W 1, 2 Electronic T5, T8, TC-L Fluorescent 220 → 240 V No Yes 230 mm 40 mm 28mm -20°C +50°C -
RS Stock No. 696-8769
BrandConvac
HK$1,557.79
Each
units
- - - - - - - - - - - - - -
RS Stock No. 873-5072
Mfr. Part No.QT-FIT5 2X14-35 / 220-240v
BrandOsram
HK$113.79
Each
units
35 W 2 Electronic T5 Fluorescent 220 → 240 V No - 280 mm 30 mm 21mm -15°C +50°C -
RS Stock No. 873-5041
Mfr. Part No.QTP-OPTIMAL 2x54-58
BrandOsram
HK$137.93
Each
units
54 W 2 Electronic T5 Fluorescent 220 → 240 V No - 360 mm 30 mm 21mm -20°C +50°C -
RS Stock No. 781-2945
Mfr. Part No.22185148
BrandTridonic
HK$234.63
Each
units
14 W, 21 W, 28 W, 35 W 2 Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +75°C -
RS Stock No. 775-3997
Mfr. Part No.22185217
BrandTridonic
HK$362.53
Each
units
36 W 2 Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 28mm -25°C +60°C -
RS Stock No. 775-3981
Mfr. Part No.22185214
BrandTridonic
HK$336.90
Each
units
36 W 1 Electronic T8 Fluorescent 220 → 240 V No Yes 230 mm 30 mm 21mm -25°C +65°C -
RS Stock No. 667-7252
Mfr. Part No.HSA25223221-N
BrandParmar
HK$422.48
Each
units
250 W 1 Electromagnetic - Ceramic Metal Halide, HPS, Metal Halide 230/240 V No - 167 mm 87 mm 72mm 0°C +75°C -
RS Stock No. 775-3988
Mfr. Part No.22185216
BrandTridonic
HK$362.53
Each
units
18 W 2 Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +70°C -
RS Stock No. 775-4007
Mfr. Part No.22176405
BrandTridonic
HK$424.25
Each
units
10 W 1, 2 Electronic T4 Fluorescent 220 → 240 V No Yes 103 mm 67 mm 31mm -25°C +70°C -
RS Stock No. 899-7854
Mfr. Part No.HF-P 3/414 TL5 III
HK$264.78
Each
units
- 3/4 Piece Electronic TL5 Fluorescent 220 → 240 V No Yes 280 mm 39 mm 21mm -25°C +60°C -
RS Stock No. 775-3972
Mfr. Part No.22185213
BrandTridonic
HK$336.90
Each
units
18 W 1 Electronic T8 Fluorescent 220 → 240 V No Yes 230 mm 30 mm 21mm -25°C +70°C -
RS Stock No. 873-5066
Mfr. Part No.QTP5 2X14-35/220-240
BrandOsram
HK$134.19
Each
units
35 W 2 Electronic T5 Fluorescent 220 → 240 V No - 360 mm 30 mm 21mm -20°C +50°C -
RS Stock No. 729-9156
Mfr. Part No.BMH70L302ITS (HK)
HK$1,447.37
Each
units
- - Electromagnetic - Metal Halide 230 V - - 117 mm 57.1 mm 51.5mm - - -
RS Stock No. 544-339
Mfr. Part No.PVC035SCDM
HK$549.40
Each
units
35 W 1 Electronic - Ceramic Metal Halide 220 → 240 V No Yes 109 mm 75 mm 32mm -20°C +45°C -
RS Stock No. 873-5127
Mfr. Part No.QT-ECO 2x5-11/220-240 S square
BrandOsram
HK$128.36
Each
units
21 W 2 Electronic CFL Compact Fluorescent 220 → 240 V No Yes 80 mm 40 mm 22mm -15°C +50°C -
RS Stock No. 781-2958
Mfr. Part No.22185210
BrandTridonic
HK$342.74
Each
units
80 W 2 Electronic T5 Fluorescent 220 → 240 V No Yes 425 mm 30 mm 21mm -25°C +55°C -
RS Stock No. 544-349
Mfr. Part No.HID-PV C 070I
HK$213.33
Each
units
70 W 1 Electronic - Ceramic Metal Halide 220 → 240 V No Yes 188 mm 82.7 mm 35mm -20°C +45°C -
Related Products
VCNL4035X01 integrates a proximity sensor (PS), ambient light ...
Description:
VCNL4035X01 integrates a proximity sensor (PS), ambient light sensor (ALS), a muxx, and a driver for up to 3 external IREDs / LEDs into one small package. It incorporates photodiodes, amplifiers, and analog to digital converting circuits into a single ...
VCNL4040 integrates a proximity sensor (PS), ambient light ...
Description:
VCNL4040 integrates a proximity sensor (PS), ambient light sensor (ALS), and a high power IRED into one small package. It incorporates photodiodes, amplifiers, and analog to digital converting circuits into a single chip by CMOS process. The 16-bit high resolution ...
VCNL4200 integrates a high sensitivity long distance proximity ...
Description:
VCNL4200 integrates a high sensitivity long distance proximity sensor (PS), ambient light sensor (ALS), and 940 nm IRED into one small package. It incorporates photodiodes, amplifiers, and analog to digital converting circuits into a single chip using a CMOS process. ...
The ROHM sensor medal is a wearable device ...
Description:
The ROHM sensor medal is a wearable device that utilizes proprietary human sensing technology. Multiple sensors instantaneously sense the wearer's movement, activities, location, and can communicate with information terminals. • Ideal for initial development using multiple sensors• Low power consumption. ...