2011年1月18日 星期二

JUMPING ON THE BANDWAGON

“Although overall the LED projects have been approved, initial capital cost is relatively high and therefore restricts the pace of conversion,” he explains. “Technology is also advancing at a fast pace and it’s hard to know when to jump on the bandwagon. Plus, while there is a vast range of LED lights on the market, these are not all of the same quality.”

JUMPING ON THE BANDWAGON

Despite the concerns about colour, most lighting experts agree that LEDs can’t be ignored; EU legislation means older, less energy-efficient lamps are being banned, making replacements harder (and more expensive) to get.More than 425 million led bulb 60W incandescent bulbs are sold each year in the US, representing about 40% of the market for light bulbs.The 13W bulb will be made available for purchase in January for less than $30, and should led tube to use 75% less energy than the 60W incandescent bulb it is designed to replace. “There will always be legislation that makes it harder to buy less efficient lamps in the future and so all museums and galleries are going to have to give newer technology consideration,With the lighting change, the church will table lamps save more than $180 a year in energy costs. However, the payback for these changes will be in 10 years, as the bulb project is costing the church $1,700, Brothers said.” says ERCO’s Tiernan.

Trialling LEDs seems to be the popular approach, but any museum considering this is advised to look carefully at its options.

Paul Ruffles recommends that museums purchasing LEDs make sure that they choose a good quality driver – the electronic device that controls the flow of power into the LED – that has a similar shelf-life to the LED light itself.For example, while he no longer fluorescent lights disassembles the drip irrigation systems as he did when he was a puppy, now with the cooler temperatures beginning to prevail, he occasionally enjoys ripping the laundry from our clothesline then dragging it onto our front porch . He also says that museums need to be careful when specifying LEDs that they are supplied from a single colour “bin” to ensure that their colours are the same. This is because the manufacturing process means that as LEDs can have quite wide colour variation.I honesty believe that he saw himself as half way to the dump and headed for some of Bruce’s Cheap nike air max cookies, until I opened my door to allow for a stiff cold slap of reality to suddenly end his journey.

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