I am delighted to have used Kellwood...
- P. Nisbet, Wabtec Corporation
a project that was well planned and promptly accomplished
- E. McHugh, Loganair
Where others let us down, Kellwood did not
W. Coley, Barking Abbey School
...my client is over the moon with the end results
A. Fraser, MacLean Electrical
I'd certainly recommend them
V. Richardson, Stolle Europe
I'm more than pleased with the guys. I'd recommend them to anyone
G. Gray, Logoplaste
What is lighting maintenance?
All light sources lose brightness over time, whether LED, fluorescent, incandescent etc. - this is known as lumen degradation. The lumen degradation of LED lights is primarily dependent on chip quality, the current flowing through the chips (known as drive current - lower is generally better) and temperature. One of the primary differences between high and low quality LED fittings is thermal design - high quality LED luminaires are designed to radiate heat effectively to keep components cool and slow lumen degradation. An LED luminaire's lifetime is commonly modelled as its L70 point -i.e. the point at which lumen output has reduced to 70% of its initial value. Most good quality LED fittings should have an L70 value of at least 50,000 hours.
Our lights are used by