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WebWhat is the difference between an LED bulb and a broad-spectrum mercury-arc bulb? LEDs (Light-Emitting Diodes) are semiconductor light sources that emit very discrete … Web3E) Determine if your LED tube light is compatible with the shunted or non-shunted tombstone configuration. If your LED tube light is single-ended, it is NOT compatible with shunted tombstones. This is because each of the two contacts in the tombstone must be opposite polarity for a single-ended LED tube light to work. WebNov 28, 2024 · The only difference between ultraviolet light (UV) and LED dryers is the wavelength of light used to dry your manicure. The UV light dryer used today was popularized by makeup artist James Giuliano in … fresh start fitness studio