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 873-5048
製造零件編號PTi 70/220-240 I
BrandOsram
HK$302.80
單位
73 W 1 Electronic - HID 220 → 240 V No - 110 mm 75 mm 30mm -25°C +55°C -
RS庫存編號 873-5054
製造零件編號PT-FIT 35/220-240 I
BrandOsram
HK$253.17
單位
39 W 1 Electronic - HID 220 → 240 V No - 171 mm 83 mm 33mm -15°C +60°C -
RS庫存編號 873-5101
製造零件編號QTP-T/E 1X26-42,2X26/220-240
BrandOsram
HK$131.67
單位
42 W 2 Electronic CFL Compact Fluorescent 220 → 240 V No - 103 mm 67 mm 31mm -20°C +50°C -
RS庫存編號 873-5085
製造零件編號QTP-M 1X26-42/220-240 S
BrandOsram
HK$132.30
單位
46 W 1 Electronic CFL Fluorescent 220 → 240 V No - 103 mm 67 mm 31mm -20°C +50°C -
RS庫存編號 781-2954
製造零件編號22185156
BrandTridonic
HK$241.16
單位
54 W 2 Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +55°C -
RS庫存編號 781-2932
製造零件編號22185155
BrandTridonic
HK$228.34
單位
54 W 1 Electronic T5 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +60°C -
RS庫存編號 191-7738
製造零件編號4008321537041
BrandOsram
HK$331.76
單位
- - - - - - - - - - - - - -
RS庫存編號 544-355
製造零件編號PVC070SCDM
HK$627.93
單位
70 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 778-5326
BrandRS PRO
HK$271.01
單位
18 → 36 (T8) W, 18 → 36 (TC-F) W, 18 → 40 (TC-L) W, 24 and 39 (T5 HO) W 1 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 -
RS庫存編號 873-5032
製造零件編號QTP-OPTIMAL 1x54-58
BrandOsram
HK$111.77
單位
50 W 1 Electronic T5 Fluorescent 220 → 240 V No - 280 mm 30 mm 21mm -20°C +50°C -
RS庫存編號 873-5117
製造零件編號QTi DALI 2x14/24/220-240 DIM
BrandOsram
HK$272.16
單位
22.5 W 2 Electronic T5, T8 Compact Fluorescent 220 → 240 V Yes - 423 mm 30 mm 21mm -25°C +75°C 1-10V
RS庫存編號 778-5329
BrandRS PRO
HK$308.81
單位
18 → 36 (T8) W, 24 → 36 (TC-F) W, 24 → 39 (T5 HO) W, 34 → 40 (TC-L) W 2 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 -
RS庫存編號 796-1898
BrandRS PRO
HK$452.22
單位
80 W 1 Electronic - LED 220 → 240 V Yes - 280 mm 21 mm 30mm -25°C +50°C -
RS庫存編號 678-4600
製造零件編號CP010200
BrandMegaman
HK$549.92
單位
200 W 1 Electromagnetic - Compact Fluorescent 220 → 240 V No - 175 mm 103 mm 59mm -40°C +60°C -
RS庫存編號 873-5123
製造零件編號QT-ECO 1x18-24/220-240 L long
BrandOsram
HK$89.00
單位
20 W 1 Electronic CFL Compact Fluorescent 220 → 240 V No Yes 150 mm 22 mm 22mm -15°C +50°C -
RS庫存編號 873-5088
製造零件編號QTP-M 2X26-32/220-240 S
BrandOsram
HK$138.54
單位
68 W 2 Electronic CFL Fluorescent 220 → 240 V No - 123 mm 79 mm 33mm -20°C +50°C -
RS庫存編號 781-2926
製造零件編號22185149
BrandTridonic
HK$208.16
單位
24 W 1 Electronic T5 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +70°C -
RS庫存編號 796-1918
BrandRS PRO
HK$600.14
單位
80 W 1 Electronic - LED 220 → 240 V Yes - 360 mm 21 mm 30mm -25°C +50°C DALI
RS庫存編號 873-5098
製造零件編號QTP-DL 2X36-40/220-240
BrandOsram
HK$181.61
單位
90 W 1 Electronic CFL Compact Fluorescent 220 → 240 V No - 280 mm 40 mm 28mm -20°C +50°C -
RS庫存編號 729-9162
製造零件編號HF-P 258 (HK)
HK$1,867.49
單位
- 2 Electronic - Fluorescent 220 → 240 V - - 280 mm 30. mm 28mm - +75°C -