Скачать с ютуб Sylvania SPX Eco Arc 69/108W high pressure sodium retrofit lamp for mercury vapor ballasts в хорошем качестве

Sylvania SPX Eco Arc 69/108W high pressure sodium retrofit lamp for mercury vapor ballasts

After wanting to get my hands on a Havells Sylvania SPX Eco Arc 69/108W high pressure sodium retrofit lamp designed for use on European 80W and 125W mercury vapor ballasts, I have finally been able to get some imported into the USA because they are very unique lamps in many ways. First off, they are pretty much the only dual wattage high pressure sodium retrofit lamp let alone HID retrofit lamp designed for mercury vapor ballasts that I know of. Secondly, these lamps seem to be one of the few high pressure sodium retrofit lamps that can theoretically be used as a direct retrofit lamp for either a North American 100W H38 mercury vapor lamp or a Japanese 100W mercury vapor lamp aside from Hitachi’s 85W high pressure sodium retrofit lamps and Mitsubishi’s 85 CRI 85W high pressure sodium retrofit lamps designed for Japanese 100W mercury vapor HX ballasts and reactor ballasts. This is because North American 100W H38 mercury vapor lamps and Japanese 100W mercury vapor lamps have operating current values that are larger than that of European 80W mercury vapor lamps, but smaller than that of European 125W mercury vapor lamps, meaning that operating the Sylvania SPX Eco Arc 69/108W high pressure sodium retrofit lamp on North American 100W H38 mercury vapor ballasts and Japanese 100W mercury vapor ballasts is like running the lamp on a “medium power” setting while running the lamp on European 80W mercury vapor ballasts is like running the lamp on a “low power” setting and running the lamp on European 125W mercury vapor ballasts is like running the lamp on a “high power” setting. This basically means that the lamp is in the “Goldilocks Zone” of its acceptable operating current range. I will conduct arc voltage drop and operating current value readings on 100W ballasts once I get access to my measurement tools. So far, the lamp seems to run very well on a North American 100W H38 mercury vapor HX ballast and have had no performance issues yet. Thirdly, these retrofit lamps have an unsaturated sodium chemistry due to the long-lasting mercury vapor color during warmup in addition to having a low wattage and an E27 base unlike most other high pressure sodium retrofit lamps designed for mercury vapor ballasts sold globally. As far as I understand, one of the biggest advantages of having an unsaturated arc tube chemistry in a high pressure sodium retrofit lamp is that these lamps have a relatively stable arc voltage drop throughout their lifetimes, which can allow them to even run on CWA ballasts safely for long term installations. This arc tube chemistry is rarely found in most high pressure sodium retrofit lamps designed for mercury vapor ballasts as competing lamps usually have a saturated arc tube chemistry, which limits their use to either HX ballasts or reactor ballasts only. I was able to source my lamps from a German online flea market website known as “Kleinanzeigen”. Sadly, Kleinanzeigen does not allow for items to get shipped outside of Germany. I bypassed this restriction by using a forwarding service known as “Shippn” in which a “host” buys a package on behalf of an international customer and ships the package directly to the customer’s address. When deciding to purchase my lamps in Bulk, I was able to get them shipped across the Atlantic for a fairly reasonable price on a lamp for lamp basis of around $6USD per lamp. Overall, I really think these lamps are beautiful.