LED or CFL ?

[Sunking]

LED tubes guys? Sure you do not mean LED strips?

Bottom line LED's are not ready for area lighting yet. Once you look the real numbers the best LED's out there max efficiency is about 70 Lumens/watt which is what CFL's are at. LED's are great for TASK and ACCENT lighting but have a long way to go for interior area lighting. For interior T5HO is king at 100 to 105 Lumens/watt. I use quite a few of them especially in the kitchen for under and over the cabinet lighting with recessed cans using CFL.

Outside for security, landscaping, accent, and inside the garage is where I use LED's. Also in the garage I use T5HO 4 foot-4-tube fixtures to create the sun.

[paulcheung]

I haven't seen any T5 or T5HO tubes, so I can't say anything about them. How many watts is the T5HO 4'? if you have to change the ballast and the tube, it has more work to change them. The LED don't use ballast so I just cut the wire and connect to the tube. The T5 need new fixture or adapter, don't it?
How much is the T5HO 4 foot tube cost? My house is installed with 4' or 2' fluorescent tubes everywhere. The 4' LED tube is cost $2800 Ja. dollars each without the fixture. it is about $26 US each 18watts.

[SunEagle]

LED tubes guys? Sure you do not mean LED strips?

Bottom line LED's are not ready for area lighting yet. Once you look the real numbers the best LED's out there max efficiency is about 70 Lumens/watt which is what CFL's are at. LED's are great for TASK and ACCENT lighting but have a long way to go for interior area lighting. For interior T5HO is king at 100 to 105 Lumens/watt. I use quite a few of them especially in the kitchen for under and over the cabinet lighting with recessed cans using CFL.

Outside for security, landscaping, accent, and inside the garage is where I use LED's. Also in the garage I use T5HO 4 foot-4-tube fixtures to create the sun.

There are LED strips that are being sold but I purchased LED Tube lamps that look like a T8. The attached link shows a similar type that I have purchased but mine came from a US supplier. Some have a clear lens and show the individual LEDs other lamps have translucent lens which distribute the light more evenly but you lose a little too. Choice is up to the user.

http://www.ebay.com/itm/G13-T8-144-L...item5af4880f88

The only modifications needed is to remove the old ballast in the fixture and wire up the tombstone connectors directly to 120 volts. Just make sure they are rated at least 125volts.

Although the LED lamp manufacturers are also selling retro-fit that is easy to replace the existing ballast and terminations for the old fluorescent tubes so the LED tubes can go into the same fixture housing.

[SunEagle]

Navy to use LED lamps

Check out this news about LED lamps being used on Navy supply ships.

http://ewweb.com/lighting/revolution-lighting-technologies-provide-navy-supply-ships-17000-led-lamps?NL=EW-02&Issue=EW-02_20131217_EW-02_335&YM_RID=vince.ricca@psoglobal.com&YM_MID=1439920&sfvc4enews=42&cl=article_1_1