@windaelectronics: 40W UV Ultraviolet Blacklight CFL (Compact Fluorescent) Spiral Lamp. It is specifically designed to emit long-wave ultraviolet light (UVA), commonly known as a "blacklight," which causes fluorescent materials to glow.  Amazon UK +2 Key Specifications Power: 40 Watts. Voltage: 220–240V (as seen on the product label). Shape: Spiral/Helix. Wavelength: Typically around 365nm. Base Type: The image shows a B22 Bayonet base (metal base with two side pins). Note that many similar models also come with an E27 Edison screw base. Lifespan: Approximately 6,000 to 8,000 hours. 

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Friday 20 February 2026 19:47:45 GMT