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 873-5108
製造零件編號QTP-T/E 1x18, 2x18
BrandOsram
HK$108.27
單位
18 W 1, 2 Electronic CFL Compact Fluorescent 220 → 240 V No - 103 mm 67 mm 31mm -20°C +50°C -
RS庫存編號 796-1905
BrandRS PRO
HK$525.26
單位
50 W 1 Electronic - LED 220 → 240 V Yes - 124 mm 79 mm 22mm -25°C +50°C DALI
RS庫存編號 789-7933
製造零件編號PCA 2X58 T8 ECO lp
BrandTridonic
HK$608.77
單位
2 x 58 W 2 Electronic T8 Fluorescent 220 → 240 V Yes - 425 mm 30 mm 21mm -25°C +55°C DALI
RS庫存編號 873-5123
製造零件編號QT-ECO 1x18-24/220-240 L long
BrandOsram
HK$83.12
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 781-2926
製造零件編號22185149
BrandTridonic
HK$202.90
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 781-2951
製造零件編號22185154
BrandTridonic
HK$216.73
單位
49 W 2 Electronic T5 Fluorescent 220 → 240 V No Yes 360 mm 30 mm 21mm -25°C +55°C -
RS庫存編號 778-5323
BrandRS PRO
HK$241.36
單位
54 (T5 HO) W, 55 (TC-L) W, 58 (T8) W 1 Electronic T5 HO, T8, TC-L Compact Fluorescent, Fluorescent 220 → 240 V No Yes 285 mm 30 mm 26mm -25°C +60°C -
RS庫存編號 729-9099
製造零件編號PTI150 (HK)
BrandOsram
HK$7,823.58
單位
147 W - - - - 220 → 240 V - - 151 mm 40 mm 91mm -25°C +55 °C, +85 °C, +110 °C -
RS庫存編號 781-2954
製造零件編號22185156
BrandTridonic
HK$216.73
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 873-5101
製造零件編號QTP-T/E 1X26-42,2X26/220-240
BrandOsram
HK$120.06
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 873-5117
製造零件編號QTi DALI 2x14/24/220-240 DIM
BrandOsram
HK$279.36
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$245.49
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 781-2939
製造零件編號22185153
BrandTridonic
HK$255.02
單位
49 W 1 Electronic T5 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +60°C -
RS庫存編號 781-2932
製造零件編號22185155
BrandTridonic
HK$238.70
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 796-1895
BrandRS PRO
HK$424.22
單位
50 W 1 Electronic - LED 220 → 240 V Yes - 124 mm 79 mm 22mm -25°C +50°C -
RS庫存編號 873-5091
製造零件編號QTP-DL 2x55/220-240 GII
BrandOsram
HK$183.30
單位
55 W 2 Electronic CFL Compact Fluorescent 220 → 240 V No - 423 mm 30 mm 21mm -20°C +50°C -
RS庫存編號 778-5326
BrandRS PRO
HK$225.05
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 873-5048
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 781-2936
製造零件編號22185209
BrandTridonic
HK$290.24
單位
80 W 1 Electronic T5 Fluorescent 220 → 240 V No Yes 280 mm 30 mm 21mm -25°C +60°C -
RS庫存編號 778-5313
BrandRS PRO
HK$223.23
單位
14 → 35 (T5) W 1 Electronic T5 Fluorescent 220 → 240 V No Yes 285 mm 30 mm 26mm -25°C +60°C -