Philips 40-Watt 4 ft. ALTO Supreme Plus High CRI T12 Fluorescent Tube Light Bulb, Cool White 4100K (30-Pack)
Regular price $121.25Philips 40W 4-ft T12 Cool White Fluorescent Tubes (30-Pack)
These Philips ALTO Supreme Plus 4-ft T12 fluorescent tubes deliver crisp 4100K cool white light with a high 87 CRI for clear, accurate illumination. Each 40W glass tube produces 2550 lumens and lasts up to 24,000 hours, ideal for commercial and residential general lighting.
Key Features:
- High CRI Cool White: 4100K color temperature with 87 CRI for accurate, bright task lighting
- Long-Life Performance: Up to 24,000-hour average life to reduce maintenance
- Reliable Output: 2550 lumens per bulb; 63.8 lm/W efficiency
- Standard Fit: T12 linear tube with G13 medium bi-pin base for Type A ballast fixtures
- ALTO Technology: Low-mercury design; damp-rated for indoor commercial or residential use
Specifications Table:
| Specification | Details |
|---|---|
| Wattage | 40 W |
| Length | 48 in (4 ft) |
| Diameter | 1.5 in |
| Bulb shape | T12 linear |
| Base type | G13 medium bi-pin |
| Color temperature | Cool White 4100K (listed as 4000K on site) |
| Color Rendering Index (CRI) | 87 |
| Lumens | 2550 lm |
| Lumens per watt | 63.8 lm/W |
| Average life | 24,000 hours |
| Ballast compatibility | Type A |
| Dimmable | No |
| Material | Glass |
| Finish | Frosted |
| Indoor/Outdoor | Indoor; Damp Rated |
| Operating temperature max | 113 °F |
| Voltage | 120 V |
| Number of bulbs included | 30 |
| Contains mercury | Yes |
| Control type | Switch |
| Lighting technology | Fluorescent |
| Bulb color | White |
| Wattage equivalence | 40 W |
| Estimated yearly energy cost | $4.82 (3 hrs/day, 11¢/kWh) |
Frequently Asked Questions (FAQ):
Q: Are these bulbs dimmable?
A: No. These T12 fluorescent tubes are non-dimmable.
Q: What ballast do they require?
A: They are compatible with Type A fluorescent ballasts designed for T12 lamps.
Q: What is the color and brightness?
A: Cool White 4100K color temperature with 2550 lumens per bulb and 87 CRI.
Q: Where can these be used?
A: For indoor, damp-rated applications in commercial or residential fixtures using 4-ft T12 lamps.
Q: How many bulbs are included?
A: 30 bulbs are included in this pack.
Crisp, Cool Illumination for Elevated Everyday Spaces
The cool white glow of these linear tubes brings a refined clarity to workshops, kitchens, and utility spaces. I love the sleek, frosted finish—quietly luxe while delivering true-to-color light that keeps surfaces feeling fresh and functional. Line a series above a workbench or within a soffit to create a uniform ribbon of brightness. This is the kind of effortless, dependable lighting that underpins a modern, polished home.
Brighten your space with long-lasting, high-CRI cool white light—add this 30-pack to your cart today.
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