A brief introduction to Homewatt

homewatt.co.uk started selling a range of compact fluorescent bulbs directly to the public in 2008. Notable for their quick start times, high brightness and warm colour the range took quickly became popular and was specified by a number of UK local authorities for use in energy efficiency projects.

Also sold from the start was a single style of GU10 LED bulb. The technology was basic using a cluster of 48 low power LEDs and total light output a maximum 100 lumens. But even then a choice of warm and daylight white was offered.

Since 2008 Homewatt's product range has migrated almost completely to different styles of LED bulbs.

Homewatt's basic premise is to offer high quality products with the minimum amount of added cost between the factory and the consumer. Today most of the range still carries the Homewatt brand name and is specified and sourced directly from the factory.

Homewatt tries to be a responsible producer. We believe we were the first UK retailer to register LED bulbs for WEEE and we try to minimise the use of unnecessary and non-recyclable packaging as much as possible.


What are LED bulbs?

LED bulbs are electronic devices relying on Light Emitting Diodes which use electrical energy to produce light by electroluminescence. By contrast traditional domestic light bulbs work by heating a filament (resistor) to produce light as black body radiation.

LED bulbs consist of 3 core components, all which are evolving rapidly:

  • the LED chip[s] that produce the light
  • a driver circuit that converts the lighting circuit electricity supply to one suitable for the LED chip[s], typically a low voltage DC supply (e.g. 5V DC).
  • a case incorporating a heat sink to prevent the LED chips overheating. Excess heat will shorten the operating life of LEDs

The materials used in the manufacture of LED bulbs varies widely. In general more expensive bulbs will use bether quality components throughout, improving both the quality of light and the likely life of the bulb.


What makes Homewatt's LED bulbs special?

Homewatt offers a range of LED bulbs including the high-end Astralumen™ range. Although we sell across Europe and beyond we are particularly mindful of the UK market when designing our LED bulbs. The UK used to operate at a higher voltage than the current European standard and much of the legacy infra-structure is still in place. High and erratic voltage has been shown to reduce the life of LED bulbs due to the strain it puts on the components in the driver circuit. Our design tolerances reflect this with a maximum voltage of 264V AC as standard.

Our LEDs are sourced from good quality manufacturers such as CREE of the USA, Samsung of Korea and Epistar of Taiwan.

Our top end Astralumen™ range uses cold forged aluminium as the heat sink material. It's more expensive but conducts heat up to 2.5x better than the normal materials used, prolonging the life of the lamps whilst allowing them to run at higher levels of brightness.

Our short supply chain approach minimises the costs and margins in the distribution chain making our bulbs excellent value even if they are not always the cheapest.


How much money will I save by switching to LED bulbs?

We estimate a 5W GU10 LED bulb will save around £8 per year when used for 1,000 hours. In a kitchen or hallway where lights are often used for much more than average savings could be has high as £15 - £20 per year. The highest saving figure assumes the lights are on for 7 hours/day on average.


Are LED bulbs plug and play replacements for my existing lightbulbs?


There are a few "buts" though:

  • dimensions can vary slightly from the de facto standards for incandescent bulbs. For example 60W~100W equivalent replacements for GLS bulbs (jargon for light bulb shaped light bulbs) are often Ø63mm~80mm rather than 60mm. Simarly they may be slightly longer. Unlikely to ever make a difference but check the data sheet shown on the individual bulb pages if your fittings are sensitive to bulb dimensions.
  • Low voltage LED bulbs, e.g. G4, MR16, MR11, may not work well with existing transformers as their draw may be significantly below the rated output of the transformer. Again this usually isn't a problem but if your low voltage LEDs won't light or flicker then the problem is almost certainly the transformer rather than the bulbs.
  • Dimmable LEDs may require a change of dimmer switch as these also have a minimum rated load.


Impact of UK Building Regulations Schedule 1 Part L on use of LED bulbs

All our LED bulbs are highly efficient and meet the requirements of Part L with a luminous efficacy in excess of 40lm/W.


HOMEWATT - GU10 LED Bulbs & Low Energy Lighting

The UK’s Premier Suppliers of MR16, MR11, G4, G9 & GU10 LED bulbs

Homewatt offers an wide range of high quality LED bulbs and a shrinking range of low energy compact fluorescent light bulbs. We aim to offer market leading functionality at unbeatable prices. The majority of our products carry our own name and we work alongside our manufacturing partners to ensure innovation in functionality and design.

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Technical Advice

We offer friendly technical advice about the use and suitability of all our products Call us on: 01296 821 150 or Email us.

2 year RTB replacement warranty click for terms and conditions free UK delivery included in prices

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