Lighting question , again...

[Clarence Martin]

How many of the screw in type of LED lights would you need to reproduce the light output of a shop light that uses 2 of the t12 4 foot light tubes ?

[Charles Wiggins]

Don't have a clue, but this might help with understanding the calculations necessary: http://apps1.eere.energy.gov/buildings/publications/pdfs/ssl/troffer_benchmark_01-09.pdf

[Matt Meiser]

What are the lumens of the screw in bulbs and the lumens of the t12 tubes you are using?

[Clarence Martin]

What are the lumens of the screw in bulbs and the lumens of the t12 tubes you are using?


1925 for the t-12's

Lowe's has Utilitech 23-Watt (100W Equivalent) A21 Medium Base (E-26) Warm White Dimmable LED Bulb (http://www.lowes.com/pd_235583-75774-LAOM1600RLED_1z10c04+1z10ht3__?productId=50109678&Ns=p_product_qty_sales_dollar|1&pl=1&currentURL=%3FNs%3Dp_product_qty_sales_dollar%7C1% 26page%3D1&facetInfo=100.0)

that has 1600 lumens.

I was thinking for a temporary solution, to tie on one of the 6 outlet surge protectors to the rafters in the Basement and then get a couple of plug in receptacles and plug them in the surge protector and screw the light bulbs in them.

[Alan Schwabacher]

Look for LED bulbs that produce the same number of lumens. These may actually be brighter in practice, because LEDs point all the emitted light in one general direction, while the fluorescent tubes radiate in all directions. Depending on how efficiently the fixture reflects the light headed in the wrong direction, actual brightness will vary.

A 28 Watt LED tube that fits into a T8 fixture claims 2750 lumens here: http://www.larsonelectronics.com/p-64280-28-watt-led-bulb-4-foot-t8-lamp-2750-lumens-replacement-or-upgrade-for-fluorescent-lights.aspx

[Chris Padilla]

Look for LED bulbs that produce the same number of lumens. These may actually be brighter in practice, because LEDs point all the emitted light in one general direction, while the fluorescent tubes radiate in all directions. Depending on how efficiently the fixture reflects the light headed in the wrong direction, actual brightness will vary.

A 28 Watt LED tube that fits into a T8 fixture claims 2750 lumens here: http://www.larsonelectronics.com/p-64280-28-watt-led-bulb-4-foot-t8-lamp-2750-lumens-replacement-or-upgrade-for-fluorescent-lights.aspx

:eek: 71 $1 tacos for that baby! :eek:

Of course, I say this after dropping much much more to provide very low profile, high lumen dimmable LED lights for the new bathroom vanity I'm working on.

[Marc Ward]

Look for LED bulbs that produce the same number of lumens. These may actually be brighter in practice, because LEDs point all the emitted light in one general direction, while the fluorescent tubes radiate in all directions. Depending on how efficiently the fixture reflects the light headed in the wrong direction, actual brightness will vary.

A 28 Watt LED tube that fits into a T8 fixture claims 2750 lumens here: http://www.larsonelectronics.com/p-64280-28-watt-led-bulb-4-foot-t8-lamp-2750-lumens-replacement-or-upgrade-for-fluorescent-lights.aspx

YIKES!!! Go here for half that....http://www.emium.com/pdf/interior/Tube.pdf

I have a dozen of them lighting up my shop. Look great.