Dr.Anarchy 0 Report post Posted October 14, 2010 I will need to get some of these and trying to find the cheapest place to buy it. Anyone have any idea where sell cheap? Share this post Link to post Share on other sites
manutd1972 1 Report post Posted October 14, 2010 why Philips in particular? thot Osram is better when it comes to bulbs? Share this post Link to post Share on other sites
Dr.Anarchy 0 Report post Posted October 14, 2010 (edited) well if you ask a woman to go and buy osram for T5 and philips for E27, i think most probably i will get some nagging and end with "you go buy yourself" so to make my life easier since I have philips E27 for my downlights, I just standardize all the bulbs to be from philips. Edited October 14, 2010 by Dr.Anarchy Share this post Link to post Share on other sites
manutd1972 1 Report post Posted October 14, 2010 well if you ask a woman to go and buy osram for T5 and philips for E27, i think most probably i will get some nagging and end with "you go buy yourself" ROFL....so funny. but u better not let the missus see this post....haha... Share this post Link to post Share on other sites
Dr.Anarchy 0 Report post Posted October 15, 2010 haha yah lor she hates to use forum so it okay Share this post Link to post Share on other sites
hermes76 0 Report post Posted October 15, 2010 I ever heard somewhere that Philips T5 are the most consistent, i.e. when placed side by side in case of cove lightings, the color remains constant. Cheapest from my opinion is from www.lightings.com.sg Share this post Link to post Share on other sites
manutd1972 1 Report post Posted October 15, 2010 where u heard from? cos i'll also be needing quite a number of T5s soon... Share this post Link to post Share on other sites
Kumikotamago 1 Report post Posted October 16, 2010 (edited) where u heard from? cos i'll also be needing quite a number of T5s soon... U want T5 is for light holder? If not philips u want it? If ok, can get it at $10 for one Edited October 16, 2010 by Kumikotamago Share this post Link to post Share on other sites
manutd1972 1 Report post Posted October 16, 2010 U want T5 is for light holder? If not philips u want it? If ok, can get it at $10 for one no , i need it with a light fitting. it's to be fitted in the top as well as the bottom of cabinets. sort of like cove lighting. Share this post Link to post Share on other sites
hermes76 0 Report post Posted October 21, 2010 Just to share some insights I've learnt...different length of T5s operate in different voltage will result in a different tone of light even if the lamps are from the same manufracturer. So take note for cove lightings, the length of T5s should be same as & when possible. Share this post Link to post Share on other sites
manutd1972 1 Report post Posted October 21, 2010 guess wat guys..... i changed all the T5s in my original design to strips of LEDS. So much cooler and consumption is so much lower. difference in price, easily earn back in PUB bills over a period of 1yr or less. if anybody wants the contacts for LED strips, gimme a buzz... Share this post Link to post Share on other sites
neubie 2 Report post Posted October 21, 2010 guess wat guys..... i changed all the T5s in my original design to strips of LEDS. So much cooler and consumption is so much lower. difference in price, easily earn back in PUB bills over a period of 1yr or less. if anybody wants the contacts for LED strips, gimme a buzz... brightness/luminance still same as before? Share this post Link to post Share on other sites
dexufto 5 Report post Posted October 21, 2010 (edited) guess wat guys..... i changed all the T5s in my original design to strips of LEDS. So much cooler and consumption is so much lower. difference in price, easily earn back in PUB bills over a period of 1yr or less. if anybody wants the contacts for LED strips, gimme a buzz... This idea did cross my mind before; as to replace the T5 with LEDs instead; I had a short discussion with one of the Besttech Lighting shop at IMM before; True, LED is low on wattage, however if you put a 4 Feet T5 (phillip) of 28 Watts against a 4 feet of LEDs (assuming 1 LED consumes 1 Watt, and over a span of 4 Feet, there's 40 LED) so theorically you are operating 40 Watt for the LEDs. So at the end of the day it may not justify the cost savings afterall.. Is there any LED user to share? Do correct me if I'm wrong Edited October 21, 2010 by dexufto Share this post Link to post Share on other sites
manutd1972 1 Report post Posted October 21, 2010 neubie:- yes, brightness is exactly the same. the place i bought the LEDs frm had equivalents lined up next to the LEDs for u to compare. they also hooked the lights up to 2 meters to measure the wattage that the lights were consuming. dexufto:- good point. i forgot about tt one. A 1m strip of LEDs would have quite a number of little LED bulbs. I dunno hw much wattage they consume. But for downlights and fluorescent, LEDs are definitely way way lower in consumption. A typical halogen downlight would consume abt 35W. PLC would be 18W. Typical LED downlights will have either 3 or 4 LED bulbs in 1 downlight. Each LED bulb taking 0.5W, so max. is 2W. In that respect, LED downlight definitely still consumes much less. as for fluorescent lighting, they had 2 set up. One using T8, another using LED bulbs. Again, with the watt-meter, the LED was consuming only one-quarter of what the T8 was consuming. so depending on usage, LEDs might or might not save on PUB bills. But one also has to take into account replacement costs. LED bulbs have a much longer lifespan than any other type of bulbs popularly used now. Or at least that's what a lot of lighting ppl say. Share this post Link to post Share on other sites
neubie 2 Report post Posted October 21, 2010 neubie:- yes, brightness is exactly the same. the place i bought the LEDs frm had equivalents lined up next to the LEDs for u to compare. they also hooked the lights up to 2 meters to measure the wattage that the lights were consuming. dexufto:- good point. i forgot about tt one. A 1m strip of LEDs would have quite a number of little LED bulbs. I dunno hw much wattage they consume. But for downlights and fluorescent, LEDs are definitely way way lower in consumption. A typical halogen downlight would consume abt 35W. PLC would be 18W. Typical LED downlights will have either 3 or 4 LED bulbs in 1 downlight. Each LED bulb taking 0.5W, so max. is 2W. In that respect, LED downlight definitely still consumes much less. as for fluorescent lighting, they had 2 set up. One using T8, another using LED bulbs. Again, with the watt-meter, the LED was consuming only one-quarter of what the T8 was consuming. so depending on usage, LEDs might or might not save on PUB bills. But one also has to take into account replacement costs. LED bulbs have a much longer lifespan than any other type of bulbs popularly used now. Or at least that's what a lot of lighting ppl say. i think need to be clear about the power consumption of LEDs vs traditional lamps. electrically one LED takes about 50mA at 2.5V to light up bright. multiply that together gives 125mW. that is the actual power consumption. multiply that by a string of 40 LEDs gives 5W of electrical consumption. looks good. however, need to consider the other factors like AC/DC converter efficiency and it's inherent consumption.... LED lights are more directional compared to normal bulbs which has a more omni-directional light output pattern. so, looking straight at a lighted LED shows extreme brightness, but looking sideways, light output falls quite a lot. best to use some measurement tools like luminance meter to test the brightness (measured in candela per square meter (cd/m²) that is the most zhun... Share this post Link to post Share on other sites
