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.


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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庫存編號 775-3994
製造零件編號22185219
BrandTridonic
HK$250.38
單位
18 W 3 Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +70°C -
RS庫存編號 781-2967
製造零件編號22185211
BrandTridonic
HK$195.06
單位
14 W 3, 4 Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +60°C -
RS庫存編號 778-5281
製造零件編號BE 236-2
BrandELT
HK$186.75
單位
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庫存編號 696-8769
BrandConvac
HK$1,557.79
單位
- - - - - - - - - - - - - -
RS庫存編號 873-5041
製造零件編號QTP-OPTIMAL 2x54-58
BrandOsram
HK$123.35
單位
54 W 2 Electronic T5 Fluorescent 220 → 240 V No - 360 mm 30 mm 21mm -20°C +50°C -
RS庫存編號 873-5072
製造零件編號QT-FIT5 2X14-35 / 220-240v
BrandOsram
HK$103.23
單位
35 W 2 Electronic T5 Fluorescent 220 → 240 V No - 280 mm 30 mm 21mm -15°C +50°C -
RS庫存編號 775-3997
製造零件編號22185217
BrandTridonic
HK$341.96
單位
36 W 2 Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 28mm -25°C +60°C -
RS庫存編號 781-2945
製造零件編號22185148
BrandTridonic
HK$210.81
單位
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庫存編號 667-7252
製造零件編號HSA25223221-N
BrandParmar
HK$286.30
單位
250 W 1 Electromagnetic - Ceramic Metal Halide, HPS, Metal Halide 230/240 V No - 167 mm 87 mm 72mm 0°C +75°C -
RS庫存編號 775-3981
製造零件編號22185214
BrandTridonic
HK$210.92
單位
36 W 1 Electronic T8 Fluorescent 220 → 240 V No Yes 230 mm 30 mm 21mm -25°C +65°C -
RS庫存編號 775-4007
製造零件編號22176405
BrandTridonic
HK$288.50
單位
10 W 1, 2 Electronic T4 Fluorescent 220 → 240 V No Yes 103 mm 67 mm 31mm -25°C +70°C -
RS庫存編號 729-9156
製造零件編號BMH70L302ITS (HK)
HK$1,447.37
單位
- - Electromagnetic - Metal Halide 230 V - - 117 mm 57.1 mm 51.5mm - - -
RS庫存編號 899-7854
製造零件編號HF-P 3/414 TL5 III
HK$200.52
單位
- 3/4 Piece Electronic TL5 Fluorescent 220 → 240 V No Yes 280 mm 39 mm 21mm -25°C +60°C -
RS庫存編號 873-5066
製造零件編號QTP5 2X14-35/220-240
BrandOsram
HK$130.77
單位
35 W 2 Electronic T5 Fluorescent 220 → 240 V No - 360 mm 30 mm 21mm -20°C +50°C -
RS庫存編號 544-339
製造零件編號PVC035SCDM
HK$652.39
單位
35 W 1 Electronic - Ceramic Metal Halide 220 → 240 V No Yes 109 mm 75 mm 32mm -20°C +45°C -
RS庫存編號 775-3972
製造零件編號22185213
BrandTridonic
HK$200.28
單位
18 W 1 Electronic T8 Fluorescent 220 → 240 V No Yes 230 mm 30 mm 21mm -25°C +70°C -
RS庫存編號 775-3988
製造零件編號22185216
BrandTridonic
HK$241.79
單位
18 W 2 Electronic T8 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +70°C -
RS庫存編號 873-5060
製造零件編號QTP5 2X49/220-240
BrandOsram
HK$123.35
單位
92 W 1 Electronic T5 Fluorescent 220 → 240 V No - 360 mm 30 mm 21mm -20°C +50°C -
RS庫存編號 873-5038
製造零件編號QTP-OPTIMAL 2x18-40
BrandOsram
HK$128.78
單位
40 W 2 Electronic T5 Fluorescent 220 → 240 V No - 360 mm 30 mm 21mm -20°C +50°C -
RS庫存編號 667-7246
製造零件編號HSA07223221
BrandParmar
HK$262.14
單位
70 W 1 Electromagnetic - Ceramic Metal Halide, HPS, Metal Halide 230/240 V No - 107 mm 69 mm 59mm 0°C +75°C -