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By 2022, 44 percent of luminaires will be LED-integrated

IHS predicts a future in which lights are only replaced when a building is renovated

IHS forecasts that by 2022 nearly half (42 percent) of light bulb shipments to the residential sector will be LED replacement lamps, compared to just 4 percent in 2014.

These LED bulbs are designed to replace traditional bulbs, so the fittings or luminaires that house the bulbs generally remain in place. While that's convenient for consumers, and helps keep the initial costs down, in terms of engineering the situation is far from ideal. Driver electronics need to be squeezed into the base of the bulb and heat dissipation is a challenge due to the small size of the bulbs.

One alternative is to integrate the LED light source and driver electronic into the luminaire. Incandescent bulbs must be replaced every year, or even more often, due to their short lifetime of about 1,000 hours. LED bulbs, on the other hand, have lifetimes of up to 50,000 hours, so there is no need to replace them for 20 years or more. 

Overall, about 44 percent of luminaire shipments are expected to be LED-integrated in 2022, says IHS in its latest research note. And even in the residential sector, which has the slowest LED penetration, the number is forecast to exceed one third of the market. 

Traditional replacement lamps might not vanish from store shelves quite yet, but a future in which the lights are only replaced when a building is renovated seems increasingly likely.

Because there is far less need to replace bulbs, hard wiring the LED chips and electronics into the luminaire has several benefits: it offers greater flexibility, in terms of design and heat management; and because fewer parts are needed, the cost of an LED integrated luminaire is potentially lower than the cost of a traditional luminaire plus an LED replacement bulb. 

It may take some time until LED integrated luminaires find their way into buildings where fittings already exist, but they are obviously an attractive option for new construction.

Some luminaire types are better suited than others for integrated LED lamps. Last year 39 percent of all street-light luminaires shipped were LED integrated, and that number is forecast to increase to 82 percent in 2022. Retrofitting street lamps with replacement bulbs often makes little economic sense, since they tend to be upgraded to smart lights, which require new wiring and fittings anyway.


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