Tronic Sodium Choke 250 Watts
TSh 4,500
Our review
A sodium choke rated at 250 watts is the ballast component that regulates current for a high-pressure sodium lamp of matching wattage. Tronic is the brand here, and the listing pairs this choke with a 20-metre snake wire, so the two are clearly intended for the same wiring job. It suits anyone maintaining or assembling an HPS lighting circuit where the lamp, ballast and ignitor must all agree on wattage. Before buying, confirm your lamp is 250 watts and check whether your fitting needs a separate ignitor, since sodium lamps are not self-starting. Compare copper versus aluminium windings, enclosure type, and whether the choke is matched to your supply voltage, because a mismatch shortens lamp life. If you are unsure of your existing setup, note the details from your old ballast first. The item is available on Sokonia.
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