The first electric light was invented in 1802 by Humphrey Davey. The first breakthrough as far as cost and workability came in 1878 with Joseph Wilson Swan and Thomas Edison's iridescent bulbs. Next breakthroughs came with the halogen light bulbs in 1950, 1990 "long life" bulbs as well as CFLs, and in 1991, white LED bulbs. Colour changing bulbs is yet another advancement.
Building supply store
A building supply store like B&Q will be a good source for colour-changing lights. The lights will include LED lighting meant for the outdoors such as colour-changing deck lights, solar colour-changing lights on stakes, colour-changing lights for ponds, as well as solar planters that are also colour-changing lights. Indoor lights will also be included such as colour changing panels, glitter lamps, floor lamps, night lights and more. The bulbs may be in standard sizes or smaller. Make sure that you buy the properly sized bulb for your light fixture. The colour-changing lighting will be for practical purposes as well as mood lamps meant to add ambiance as well as light.
Home furnishing store
Home furnishing stores like Homebase will have a wide selection of colour-changing lights. These lights will include ones for the outdoors such as spikes and solar colour-changing lamps, as well as novelty indoor lamps like duck lamps, star lamps, ball lamps, and laser spheres. Colour changing bulbs are also available such as 18 cluster changing cluster LED bulbs.
At lighting stores, you will be able to find additional colour-changing lights. These will include ceiling lamps that have remotes and may be a combination of LED and halogen bulbs, colour changing ball lights, table lamps, LED strips, elaborate chandeliers, floor lamps, LED bars and so much more. The Lighting Store, Lite Craft, Direct Light, and Kes Lighting can provide you with colour-changing lamps. These lights can come in a variety of styles and prices and can be used as regular or mood lighting. Outdoor colour-changing lamps are also available that come in various forms, such as spikes, balls light strips and other configurations. Should you need replacement bulbs for your colour-changing lamps, these lighting stores will carry the bulbs that you need. This is because bulbs of different sizes may be needed for individual lamps and the variety of sizes for colour-changing bulbs will be also offered.