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243 Stafford St.

Worcester, MA 01603

Tel. 1 (888) 455-2800

Fax 1.508.363.2900

The Business Lighting Experts

Combo Pack - One Case of NaturaLED 15W 48" T8 4000K LED Ballast Bypass Bulbs and One Matching Aleddra Emergency T8 LED with Battery Backup

SKU: 34333 | Ordering Code: 4000K EM Bundle

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On BackorderTypically ships in 7-10 business days
We may already have more on the way or, in most cases, we can ship directly from the manufacturer. Call 888-455-2800 and one of our Lighting Specialists will help to complete your order.

This item qualifies for free ground shipping *


Color Temperature (Kelvin)
Color Temperature Guide 4000 5000

Product Highlights

  • No lead or mercury means easy and environmentally safe disposal

Save $15.00 when bundles one case(25) of NaturaLED 15W 48" T8 4000K LED ballast bypass bulbs and one matching Aleddra emergency T8 LED with battery backup.

NaturaLED 15W 48" T8 4000K Glass LED Bulb, Ballast Bypass

Line Driven - Ballast must be bypassed when present.

To be used with unshunted sockets only.

  • Replacement for:
    • F32T8 32W
    • F32T8 30W
    • F32T8 28W
    • F32T8 25W
  • Non-Dimmable
  • Perfect for applications with frequent "on/off" switching cycles, and buildings that desire to be mercury free
  • Power must be turned off at the fixture before replacing the lamp
  • Instant on, no flicker or buzz
  • Emits virtually no UV rays or IR
  • Suitable for damp locations
  • DLC Listed

Aleddra Generation 2 single-ended Emergency T8 Tube is 2-in-1 bulb for use as regular light and emergency battery backup.

Controllable by wall switch.

Ideal Applications:  General on/off lighting with emergency egress capability.

  • Red-striped end is wired to an always-on circuit breaker.
  • Opposite end is wired to, and controlled by, a wall switch.
  • Bulb senses the difference between the On/Off switch and a power outage.
  • Bulb can be turned off and on by the wall switch.
  • Bulb will stay, or turn on, during a power outage.
  • Built-in lithium batteries produce 90 minutes and 420 lumens of light.
  • LED indicator shows batteries are charged.

Line driven - The ballast must be bypassed when present


 Single SKU for each:

  • NaturaLED 15W 48" T8 4000K Glass LED Bulb, Ballast Bypass - 5955 
  • Aleddra Generation 2 single-ended Emergency T8 Tube - LLT-4-EM-T8-G2-15W-40K
Full Specs



The end (or ends) of the lamp that fits into the socket.
Medium Bipin
Bulb Shape

Bulb Shape

The description of the general appearance of a lamp/bulb consists of a letter(s) followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. For example, a common household bulb is the A-19. The bulb is "A" shape and the diameter would be nineteen 8ths of an inch, or 2 3/8".
Bulb Color

Bulb Color

The color of the light produced by a bulb
Cool White
Color Temperature (Kelvin)

Color Temperature (Kelvin)

An expression of the hue of the light emitted, measured in degrees Kelvin. Usually expressed by a four digit number followed by (k), such as 2700k. Higher temperatures indicate whiter, "cooler" colors, while lower temperatures indicate yellower, "warmer" colors. Some common Kelvin temperature benchmarks are 2700k (warm white), 3500k (neutral white), 4100k (cool white), 5000k (bright white), and 6500k (daylight).
Bulb Technology

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED
Bulb Power Type

Bulb Power Type

Defines how a lamp is powered, whether it needs a ballast or not, or can use either
Ballast Bypass
Length (in)

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
Diameter (in)

Diameter (in)

Light bulbs: a measurement of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.
Battery Backup

Battery Backup

Has a backup battery to allow it to continue functioning in case of power failure.