ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#65258 - 04/29/06 10:36 AM Light Fixture Lamp Ratings
frankft Offline
Member
Registered: 10/13/04
Posts: 39
Loc: Maine
Some light fixtures state that the max light bulb allowed is 60 watts. Is it permissable to install a 25 watt flourscent lamp that the package says puts out the equivlant of 100 watts? Just something I was wondering.
_________________________
Thats how we do it up in the woods!
Top
Work Gear for Electricians and the Trades
#65259 - 04/29/06 12:32 PM Re: Light Fixture Lamp Ratings
gfretwell Offline


Member
Registered: 07/20/04
Posts: 9039
Loc: Estero,Fl,usa
Since the requirement is based on heat dissipation I think you can assume "watts is watts" and light output is not addressed.
_________________________
Greg Fretwell
Top
#65260 - 04/29/06 03:11 PM Re: Light Fixture Lamp Ratings
distributor x Offline
Member
Registered: 07/28/05
Posts: 57
Loc: Canada
If it is an enclosed fixture, you want to make sure you install a CFL that is rated for use in enclosed fixtures (most Panasonic Lamps)

In enclosed fixtures, there is heat build up which will shorten the life of most CFL's
Top
#65261 - 04/29/06 03:28 PM Re: Light Fixture Lamp Ratings
RODALCO Offline
Member
Registered: 12/08/05
Posts: 854
Loc: Titirangi, Akld, New Zealand
Thats correct, The heat build up is the killer for most lamps.

Although the CFL runs cooler the end part with the electronics still gets quite hot.
If the heat can't dissipate properly it reduces lamplife and risk of fire.

Check with specs of the CFL lamp.

For incandescent lamps the Watt output is directly related to heat, so if a 100 W lamp is inserted in a 60 W max. fitting, the lamp will have a short life, the wiring will fry behind the fitting and there is an additional fire hazard created.

Regards Ray.
_________________________
The product of rotation, excitation and flux produces electricty.
Top

Member Spotlight
Member Since: 11/17/00
Posts: 2232
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
1 registered (sparkyinak), 57 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Scotto, Freecrowder, clee512, Jdscott2005, FAIZAN

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals