Community consensus strongly advises against buying generic "unbranded" bulbs from marketplaces like eBay, as they are often reported to be ineffective or even scams.
: Ensure the pin configuration (e.g., 2-pin G23 or 4-pin) matches your specific fixture exactly. where to buy uv bulbs
When purchasing UV bulbs, the best retailers vary depending on whether you need them for water sterilization, air purification, or specialized reptile care. Major brands like and Osram are frequently cited by experts and users for their superior build quality and reliability compared to "no-name" alternatives. Top Retailers for UV Bulbs 000 hours (about one year)
: Most UVC bulbs for water and air sterilization lose effectiveness after 8,000–9,000 hours (about one year), even if they still appear to be lit. where to buy uv bulbs