Frequently asked questions

Our A19 lamps are rated at 25,000 hours. The often-quoted “up to 22 years” assumes three hours of use a day, which is the figure the US Department of Energy uses for a typical residential lamp. Run the same bulb for eight hours a day in a hallway and you should expect about eight and a half years.

Rated life is defined as L70 — the point at which the lamp still works but has dimmed to 70% of its original output. LEDs mostly fade rather than fail outright.

Almost always because the dimmer is a leading-edge model designed for incandescent loads. It expects to see hundreds of watts of resistive load; six LED lamps present about thirty. Below the dimmer’s minimum load it cannot regulate smoothly.

The fix is a trailing-edge dimmer rated for LED loads with a low minimum. Our dimming and flicker guide walks through the diagnosis in detail.

Kelvin describes the colour of the light, not its brightness. 2700 K is the warm yellow-white of an old incandescent bulb; 4000 K is neutral; 5000 K is a cool blue-white close to overcast daylight.

As a rule: 2700 K for living rooms and bedrooms, 3000–4000 K for kitchens and bathrooms, 4000–5000 K for garages, workshops and task lighting.

Yes. Our A19 and candle lamps are rated for enclosed indoor and outdoor fixtures — that rating is on the carton and in the specification table on each product. It matters because an enclosure traps heat, and heat is what shortens LED life. Lamps not rated for enclosures can lose years of service in a sealed globe.

The envelope on our A19 lamps is a polycarbonate-coated composite rather than thin glass, so a drop onto a hard floor typically dents rather than shatters. That is why they are specified for kitchens, children’s rooms and commercial food areas.

Our clear filament lamps use glass, because the look depends on it. They carry a shatter-resistant coating but are not the right choice for a high-risk location.

No. That is one of the clearest advantages over compact fluorescent lamps, which contain a small amount of mercury vapour and must be disposed of as hazardous waste. LEDs can go in normal electronics recycling — and we will send you a prepaid mailer to make that easy.

Fill in the warranty registration form with the serial number printed on the lamp base, your purchase date and the retailer. Registration takes about two minutes and has to be completed within 90 days of purchase.

LEDs are sorted into colour “bins” at manufacture, and two lamps from the same model but different production batches can sit at opposite edges of the same bin. In a single fitting nobody notices; in a row of six downlights it is obvious.

For runs of fittings in one space, order together and ask for batch matching — it is free and we do it as standard on trade orders.

Contact us with your registration reference. We ship a replacement within two working days at no cost, including shipping. There is no pro-rata deduction for time used and we do not ask you to return the failed lamp first — although we do send a prepaid mailer so it can be recycled.

We ship to the United States and Canada from our Dover, Delaware warehouse. For other markets we work through regional distributors — contact us and we will put you in touch with the right one.