- UV Blacklight (not painted bulb) means that you get real black light effect. - Screws into standard household light socket (E26) - Rated at 8000 hours (estimated life) - Standard T4 style spiral - 6" tall (tip to tip) X 2.25" diameter - 365nm - 100% Satisfaction Guaranteed or money back (see details below) UNDERSTAND THE DIFFERENCE: There are three common types of fluorescing blacklights" sold on the market: Traditional tubes, CFLs and "painted" incandescent bulbs (not a true blacklight). A true blacklight will be labeled BLB by the manufacturer and the glass tube (the "envelope") will have special characteristics designed to filter much of the visible light while emitting long wave (UV-A) ultraviolet. A long tube style black light will most effectively create the stunning fluorescent glow popular in clubs, party spaces, etc. However, a popular alternative is the spiral CFL rated BLB. The spiral CFL, while not as efficient at emitting UV-A light does a good job and is more compact. It can be screwed into a common household style light socket, making it a simple and affordable option for spaces where a long four foot tube light is not practical. AVOID FAKES. True UV-A lights are more expensive to manufacture than non UV-A lights and some vendors will sell lights that have a similar appearance but are not true blacklights. For the best screw in type Blacklights: - Buy only lights with the BLB marking. - Buy 20 Watt or greater spiral CFL lights (while they cost a couple bucks more, they emit much more UV-A light than 13 watt bulbs). - Avoid painted incandescent bulbs - they emit virtually no UV light (less than 1%) and have no fluorescent effect. OUR GUARANTEE: If you are not 100% satisfied, you can return the product within 30 days for a full refund. Please note that bulbs without ArmorSpec markings and bulbs with broken glass envelopes are ineligible for refund.
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