Ballast

Track ballast forms the trackbed upon which railroad ties (sleepers) are laid. It is packed between, below, and around the ties. ... It is typically made of crushed stone, although ballast has sometimes consisted of other, less suitable materials, for example burnt clay.

Ranges from 18W, 26W, 35W, 55W, 66W, 90W, 91W, 135W etc and the LAX series of electronic ballasts for Low Pressure Sodium lamp developed by leianxun company adopt the SCM CPU digital technique. It insures the intellectual protection of electronic ballasts---keeping the safety of ballasts and the system , when the voltage output terminal is abnormal. In the process of warm-up, triggering, and ignition, the CPU can reach the best state to protect the electrode of lamp /tubes. This is measured by the microsecond controlling span of system and the height of impulse from the trigger voltage. Thus it doubles the longevity of the electrode for lamp tubes greatly. It is perfect for solar power of street lighting.

Supply Voltage Applicable Tube Dimension Size 110/220/240V T5 T8 257*30*19/240*30*18. 50/60hz.

Type: magnetic or electronic ballast, T5/T8 or ceiling ballast. Material: 0.3mm iron, fire-proof ABS CBM: 55*55*30/1pcs 32*33*35/100pcs 33.5*32*35.5/50pcs 43*16.5*75/20pcs 23*20.5*10/15pcs 23*16.5*14/20pcs 22*20.5*10/20pcs High harmonic, low power, low work temperature, low voltage launch. Protect for momentary high voltage and abnormal state. Conforms to 3C, GB15143-1994, GB17743-1999 standard strictly.

Electronic ballast for uhp-projector lighting reources Electronic ballast for metal halide lamps Electronic ballast for stage light hid Varieties of electronic ballast for your choosing

Electronic ballast 40w choke 10 pcs.

Electronic ballast 1) power voltage: 220v 2) power frequency: 50-60hz 3) power factor: 0.98 4) coeffcient: 0.99 5) thd: n15% 6) cf: n1.7 8) specifications: 1 x 24w, 2 x 24w, 3 x 24w, 1 x 36w, 2 x 3 6w, 3 x 36w, 1 x 40w, 2 x 40w, 1 x 55w, 2 x 55w

Order>1000 cheaper Available Color Temperatureú¦Each type can supply :3000Kíó4300Kíó6000Kíó8000Kíó10000Kíó12000K íó15000Kíó20000Kíó25000Kíó30000Ketc. The product has got the E-MARK approval and have one-year quality guarantee. Specification: Normal Input Voltage:12V Allowable Input Voltage7-18V Bulb Wattage: 35W Normal Input Current:3.3A Ignition Voltage:23KV Temperature Range: -40íµ~+105íµ Life Time: >2800 hours

Rohs compliance CE approved Nemko approved