Replacement for Philips FP39/841/HO/ECO/ALTO - 39W, Cool White, Linear T5, Bipin Base

Replacing the Philips FP39/841/HO/ECO/ALTO, this 39-watt HO tube delivers substantially more light than standard output versions. With a G5 miniature bi-pin base, it's designed for high-bay applications where maximum brightness is essential. Requires a compatible HO ballast.

Output of 3650 lumens provides strong, effective illumination suitable for most environments. The 4100K cool white color temperature produces light that feels clean and professional - crisp and clean with a slight blue undertone. At 82 CRI, color rendering meets commercial standards with colors appearing natural and accurate.

Key Features & Benefits

• Cool 4100K Output: Clean, professional-grade illumination.
• Light Output: 3650 lumens ensures adequate illumination.
• 82 CRI: Good color rendering for natural appearance.
• Instant-On Operation: Full brightness immediately upon starting.
• ALTO Low Mercury: Up to 80% less mercury than conventional lamps.
• Eco-Friendly: Meets strict environmental disposal regulations.
• High Output Design: Significantly more lumens than standard tubes.
• HO Ballast Required: Must be paired with compatible high output ballast.
• G5 Miniature Bi-Pin Base: Direct fit for compatible fixtures.
• Brand New: Factory-fresh lamp with full rated life ahead.

Product Specifications

• MPN: FP39/841/HO/ECO/ALTO
• Wattage: 39 Watts
• Color Temperature: 4100K (Cool White)
• Lumens: 3650
• CRI: 82
• Base: G5
• Shape: T5
• Condition: Brand New

Common Applications

This HO fluorescent lamp is commonly found in:

• Commercial Buildings
• Office Environments
• Retail Spaces
• Residential Applications

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.