Philips Lighting 479634 Alto I...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$8.33

Philips Lighting 479634 Alto II T8 High CRI Linear Fluorescent Lamp

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Model: 479600

In Stock (leaves warehouse same day if ordered before 3pm ET)

$8.33
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Philips Lighting 479634 Alto II T8 High CRI Linear Fluorescent Lamp

The Philips Lighting 479634 is a 48-Inch T8 linear fluorescent lamp built on Philips' Alto II platform, delivering high-fidelity 90 CRI color rendering for spaces where accurate color perception matters. This lamp is available in a choice of color temperatures – 3500K Neutral White, 4100K Cool White, or 5000K Daylight – so contractors and facility managers can match the exact ambiance a space requires while keeping the same trusted 32-Watt, 2600-Lumen performance across the range. Every option uses a standard 2-Pin G13 Medium bi-pin base, allowing it to serve as a direct replacement in existing T8 fixtures without modification to sockets or ballasts. Whether specifying for retail displays, healthcare facilities, printing and graphic arts environments, or general commercial retrofits, the 479634 family gives you a consistent, high-CRI lamp platform with the flexibility to select the color temperature that best fits the application.

Key Features

  • Length: 48-Inch overall length for standard T8 fixture compatibility.
  • Wattage: 32-Watt rating balances efficient energy use with strong light output across all color temperature options.
  • Light Output: 2600-Lumens of bright, usable illumination for commercial and institutional spaces.
  • High CRI: 90 CRI rating renders colors with excellent accuracy, ideal for retail, healthcare, and color-critical tasks.
  • Color Temperature Options: Available in 3500K Neutral White, 4100K Cool White, or 5000K Daylight to match the desired ambiance.
  • Base Type: 2-Pin G13 Medium bi-pin base for straightforward installation into standard T8 sockets.
  • Alto II Technology: Philips Alto II platform construction supports consistent performance over the lamp's operating life, regardless of color temperature selected.

Technical Specifications

  • Lamp Type: T8 Linear Fluorescent
  • Product Wattage: 32W
  • Lumens: 2600-Lumens
  • CRI: 90
  • Color Temperature Range: 3500K – 5000K (3 options)
  • Bulb Base: G13
  • Length: 48-Inch
  • Series: Alto II

Typical Applications

  • Retail Display and Merchandising Lighting
  • Healthcare and Medical Facility Lighting
  • Printing, Graphic Arts, and Color-Critical Workspaces
  • Commercial Office and Institutional Lighting Retrofits
  • Standard T8 Fixture Lamp Replacement Programs

Why Philips Lighting?

Philips Lighting's Alto II linear fluorescent lamps are engineered to deliver high CRI performance and consistent color output across the 3500K to 5000K range for professionals who need reliable, color-accurate illumination. With a standard G13 base and 48-Inch length shared across every color temperature option, the 479634 family drops into existing T8 fixtures for easy upgrades or replacements, giving electrical contractors and facility managers a dependable, code-familiar lighting solution from a trusted lighting manufacturer.

Product Specs

Product Type:
Fluorescent Tube
Product Wattage:
32W
Light Temperature:
5000K
Lumens:
2600
CRI:
90
Bulb Base:
G13
Series:
Alto II
Department:
Electrical
Product Subgroup:
Lamps & Bulbs
list_batch:
PHIL-20260925
Product Group:
Lighting
Product Width:
1 in
Country Of Origin:
United States
Product Height:
1 in
Product Weight:
0.351 lb
Product Length:
47.75 in

Philips Lighting 479600 – Frequently Asked Questions

1) Can I mix 4100K and 5000K Alto II lamps in the same room or fixture?
Avoid it. All three options share the 32W rating, 2600 lumens, and G13 base, so they are electrically interchangeable, but mixing 4100K cool white with 5000K daylight in adjacent fixtures reads as a visible color mismatch on the ceiling. Standardize one temperature per space and keep the matching MPN on the shelf for relamping: 479626 for 4100K, 479634 for 5000K.
2) My fixture has T5 lamps with a smaller pin base. Can I use this T8 instead?
No. T5 lamps use a miniature bi-pin base and a shorter overall length, and this Alto II lamp is a G13 medium bi-pin T8 at 47.75 inches. It will not seat in T5 sockets or run on a T5 ballast. For T5 fixtures, the Sylvania Pentron HO Ecologic T5 24-watt lamp is the correct family.
3) How many lumens does the Philips Alto II 32W T8 put out, and how does that affect a one-for-one relamp?
2600 lumens per lamp at 32W. That is in line with a standard 32W T8, so a fixture-by-fixture swap in a 2-lamp or 4-lamp troffer holds your existing light levels while gaining the 90 CRI color rendering. No fixture count or layout change required.
4) Which Alto II color temperature should I spec for an office retrofit versus a print shop?
For general commercial office and institutional retrofits, 3500K (479600) or 4100K (479626) reads as normal white light and matches most existing building stock. For printing, graphic arts, and other color-critical proofing work, go 5000K daylight (479634), paired with the 90 CRI rendering. All three are 32W and 2600 lumens, so switching temperature does not change your lighting calculation.
5) What are the tube diameter and weight on this Philips T8, for shipping and fixture clearance?
The lamp measures 1 inch in both height and width, which is the 1 inch T8 tube diameter, with a 47.75 inch length. Each lamp weighs 0.351 lb, so a case of 30 is light freight but long, and the cartons need handling as oversize rather than heavy.
How fast can I get the Philips Lighting 479600 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Philips Lighting 479600 come with a warranty?
Absolutely. The Philips Lighting 479600 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Philips Lighting 479600?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Philips Lighting 479600 from ZenSupply?
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