![]() According to one authoritative source, life expectancy is decreased to 50% by 5% over voltage (eg: 0.6V on 12V) and by about 75% by 10% over voltage. ![]() These bulbs are made to operate in 12 or 24 volts and not on typical battery voltage (about 12.6 volts for a fully charged 12V battery). They have 'UV Stop' to filter out most harmful UV rays and they are dimmable. The halogen bulbs listed below that we sell are the high quality German made Osram brand. The indicated life expectancy is a guide only and can be influenced by a number of factors - mainly operating voltage. Dichroic halogens have a special reflector around the bulb. They are long lasting, usually rated at 2000 hours. For this reason they are often used in art galleries and jewellery shops to bring out their 'natural colours'. They are about 30% more efficient than a standard incandescent bulb and produce a whiter light similar to daylight. Halogen bulbs use special materials which enable them to be run at higher temperatures than a standard incandescent bulb. If you want to reuse your existing Halogen Dichroic fitting you could try one of these LED lights. We suggest this is suitable as a background/ TV/ party type light. The LED Dome Light contains 15 multi-coloured LEDs in a BC fitting. The Ulita and Ulitium range are both dimmable and 23 times more efficient than incandescent bulbs. We sell highly efficient LED lights from Sundaya™. LEDs powerful enough for room lighting are relatively expensive and require more precise current and heat management than compact fluorescent lamp sources of comparable output." (from Wikipedia, released under CC License). "LEDs present many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved robustness, smaller size, faster switching, and greater durability and reliability. traffic lights) and increasingly for general lighting. Invented as a practical electronic component, they are now widely used as indicator lights (ie. Listed in order of decreasing efficiency, there are Fluoro, LED, Halogen and Incandescent lights. Delay switches can turn off lights, in say public toilets, several minutes after being switched on (so they don't get left on all night). However, they can restrict some of the light output, they can often collect bugs inside and in tropical climates they can decrease light output by up to 20% by causing the tube to overheat.įor outdoor lighting consider the use of PIR motion detectors to turn the light on and off automatically (usually adjustable between 1 - 10 minutes). Use a reflector type shade to direct the light downwards.ĭiffusers over fluoro lights make them look nicer. If your ceiling is high (eg: cathedral style) suspend your light lower down, closer to where you require it. Try to bring your lights reasonably close to where you need them. For example why use a 100W to light a whole room when a 3W LED lamp will do the job? Task lighting is a concept whereby you only light up the area you need. They are extremely efficient DC lights, give a nice light spread and are dimmable (3 steps). They can then see which ones best suit their requirements.įor general room lighting we suggest the Ulita (12V). When we are serving people in our shop who want to fit out a whole house, we often suggest they first purchase a few different ones to try out. Your age (as you get older, you tend to need brighter lights to read by etc.).light shiny colours reflect light dull dark ones absorb it.How close the light is to the area to be lit.The effectiveness of a light also depends on several other factors: ![]() Over the years, we have learned that what is attractive to some is ugly to others what is light to someone is considered dull by someone else.
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