An LED driver is a self-contained power supply that has outputs matched to the electrical characteristics of your LED or array of LEDs. There are currently no industry standards, so understanding the electrical characteristics of your LED or array is critical in selecting or designing a driver circuit. Drivers should be current-regulated (deliver a consistent […]
In a press release from Jan 2009 it is stated that the pentagon is installing more than 4,200 recessed LED luminaries in Wedge 5.They are expecting a payback of less than four years with a reduction of 22% in overall electricity usage. A total reduction of 140 tons of CO2 per year. They even found
Pentagon starts using LED Lighting Read More »
So with the understanding that any experiment should be undertaken with the proper materials. I set out and found a large supply of computers and harvested anything I could use, before they were sent off to be melted down. (Or crushed) After 7 hours of unscrewing, unclipping and moderate finger jabbing I end up with
LED heat sink and power supply salvage Read More »
LED lighting is not a new idea. It is only in the last few years or so that the technology’s efficiency and efficacy surpassed CFL and HID lighting. This makes it hard to find cost effective lighting replacement, without large upfront cost. But at Eco Brooklyn we are passionate about improving the energy efficiency of
Building is the largest contributor of CO2…..Green building has a huge and immediate responsibility to reverse this. We need to start using new materials and stop using others. One of the crucial ones is sheet rock. It has lots of embeded energy and for some reason dominates building in terms of wall panels. Enter Eco
Here is an email from a fellow green builder, Keith Winston, on the cons of spray foam. No matter how great they are for sealing, they have too many drawbacks IMO. The same sealing can be done with good tape, vapor barriers and caulk. His email: The foaming agents of small cans of foam (i.e.
If you are a homeowner in Brooklyn or NY and get it into your mind that you want to install radiant flooring yor first step will be to do some research on the web. Several hours later you will most likely leave your computer in a confused daze of information overload and conflicting blog posts.
Radiant Floors For Brooklyn and NY Read More »
Lighting can account for 15-20% of your monthly electric bill. With recent advances in LED technology we are able to reproduce the same level of brightness for 1/5- 1/10th the power. This is a huge savings. If we all work together we can reduce this country’s electrical draw by 10%! That equates to a lot
Lighting with LED 1 Read More »
If you have ever wondered why we use aluminium for fins in radiant floor heating here is a simple visual example: This image is actually to show the benefits of fiberglass over other materials for windows (it conducts very little heat). But the image also shows that aluminium conducts three times more than metal. Thus
Why do we use aluminium for radiant floor heating? Read More »
Brooklyn brownstones are being built with tighter and tighter envelopes, which means there are no leaky cracks to help ventilate the building. This is a problem, sort of. Gone is the wasted heat. But you need to make up for that air and the best way is good design and mechanical ventilation. ASHRAE is the
How Much Fresh Air Does Your Home Need? Read More »
