Energy-Efficient Lighting

BULBS 101
WATTS TO LUMENS GUIDE

Make lighting choices that save you money.

Switching to energy-efficient lighting is a simple way to save energy and money. At Duke Energy Progress,
we make it easy. We work with local retailers and lighting manufacturers to offer instant discounts up to 65% on energy-efficient lighting for all your needs.

Don’t be fooled by lesser bulbs. Always look for the ENERGY STAR® certification to assure quality and safety.

Energy-efficient bulbs, discounted by Duke Energy Progress:

  • Use 70-90% less energy than traditional incandescent bulbs
  • Last 10 to 25 times longer than traditional bulbs
  • Save $30 to $80 in electricity costs over their lifetime

How much light do I need?

INCANDESCENT
BULBS
(Watts)
COMMON
CFL/LED BULBS
(Watts)
MINIMUM LIGHT
OUTPUT
(Lumens)
25
4 to 9
250
40
9 to 13
450
60
13 to 15
800
75
18 to 25
1110
100
23 to 30
1600
125
22 to 40
2000
150
40 to 45
2600
Source: www.energystar.gov

GENERAL PURPOSE

Use these bulbs to replace incandescent bulbs in most fixtures, such as table lamps, ceiling fixtures, floor torchieres, wall sconces and more.
  • CFL twist and 3-way twist*
  • CFL dimmable twist*
  • CFL A-line
  • LED omni-directional

DECORATIVE

Use these bulbs to replace incandescent bulbs in
decorative fixtures, such as ceiling fans, chandeliers
and outdoor post lights.
  • CFL and LED candelabra

GLOBE

Use in fixtures where the bulb is visible, like a
bath bar, pendant lamp or any other outward or
downward facing socket.
  • CFL and LED globe

REFLECTORS

Use in recessed cans, flood or spot lights, indoors or outdoors. LEDs are dimmable, but CFLs should indicate “dimmable” on the packaging before using in conjunction with a dimmer switch. Note that the electronic ballasts in CFLs are not always compatible with electronics in motion sensors and photo cells, which could shorten the life of the CFL.
  • R or BR Reflectors
    Use to replace an R or BR
    lamp in recessed can and
    other applications. Common
    sizes are R 20, R or BR
    30 and R or BR 40. These
    lamps are available in both
    CFL and LED options.
  • PAR Reflector
    Use to replace a PAR lamp
    in recessed, track and spot
    or flood light applications.
    Common sizes are PAR 30
    and PAR 38. These lamps
    are available in both CFL and
    LED options.
  • LED MR16
    Use to replace halogen
    MR16s. These bulbs are
    commonly used in track,
    under cabinet and range
    hood ventilation lighting.
* Only use dimmable CFLs in dimming circuits that state they are rated “dimmable.”
X
LEDs are rated to last up to 22 years! They’re perfect for those hard-to-reach recessed lights.