Product Overview
Sylvania 25283 F72T12D835HOSL – 85W T12 SAFELINE Shatter-Resistant Coated High Output Fluorescent Lamp | 3500K | 6,620 Lumens | R17d Recessed Double Contact
6,620 lumens at 3500K Designer 800 with CRI 80 – an 85W T12 SAFELINE Shatter-Resistant Coated High Output fluorescent lamp designed for high output fixtures that call for a shatter-resistant coated lamp.
| Wattage / Type 85W / T12 T12 Coated HO | Color Temp 3500K Designer 800 | Initial Lumens 6,620 lm | Rated Life 10,000 hr Rated Average | Base Type R17d Recessed Double Contact Confirm Socket |
Quick Specs
- Brand: Sylvania
- Product Code / Model: 25283 / F72T12D835HOSL
- Lamp Type: Fluorescent – T12 SAFELINE Shatter-Resistant Coated High Output
- Starting Method: Not stated in catalog - confirm from existing ballast label
- Wattage: 85W
- Base Type: R17d Recessed Double Contact
- Color Temperature: 3500K Designer 800
- CRI: 80
- Initial Lumens: 6,620 lm (approx., after 100 hours of operation)
- Mean Lumens: 6,090 lm (measured at 40% of rated life)
- Rated Average Life: 10,000 hr at 3 hours per start
- Nominal Length: 72 in
- Maximum Overall Length (MOL): 70 in
- Bulb Diameter: 1.5 in (T12)
Product Overview
The Sylvania 25283 F72T12D835HOSL is an 85W T12 SAFELINE Shatter-Resistant Coated High Output fluorescent lamp delivering 6,620 initial lumens at 3500K Designer 800. It is built for high output fixtures that call for a shatter-resistant coated lamp where lamp length, base type, ballast type, wattage, and color temperature must match the existing system.
This lamp is best suited for maintenance replacement in commercial, industrial, and institutional spaces. Before ordering, confirm the R17d Recessed Double Contact base, 85W wattage, and 3500K color temperature against your existing lamp or fixture label.
Why Choose This Product
- 6,620 initial lumens: Catalog rating after 100 hours of operation, with 6,090 mean lumens at 40% of rated life.
- 3500K Designer 800: Helps match the existing light color across a facility.
- R17d Recessed Double Contact base: Designed for the correct T12 socket style; confirm before replacement.
- 10,000 hr rated average life: Rated at 3 hours per start; longer burn cycles increase lamp life.
- Sylvania quality: Suitable for professional lighting applications and facility maintenance.
Technical Specifications
| Brand | Sylvania |
| Product Code / Model | 25283 / F72T12D835HOSL |
| Lamp Type | Fluorescent – T12 SAFELINE Shatter-Resistant Coated High Output |
| Starting Method | Not stated in catalog - confirm from existing ballast label |
| Wattage | 85W |
| Base | R17d Recessed Double Contact |
| Color Temperature | 3500K Designer 800 |
| CRI | 80 |
| Initial Lumens | 6,620 lm |
| Mean Lumens | 6,090 lm |
| Rated Average Life (3 hr/start) | 10,000 hr |
Dimensions
| Nominal Length | 72 in |
| Maximum Overall Length (MOL) | 70 in |
| Bulb Diameter | 1.5 in (T12) |
Applications
- Maintenance and retrofit replacement in compatible high output fixtures that call for a shatter-resistant coated lamp
- Commercial, industrial, and institutional facilities and utility spaces
- Replacement for existing F72T12D835HOSL lamps – confirm the lamp code on your current lamp
Compatibility & Replacement
Fixture type: Designed for high output fixtures that call for a shatter-resistant coated lamp using an R17d Recessed Double Contact base.
Ballast: Use a ballast rated for high output (HO) lamps of this wattage. The Sylvania catalog does not state the starting method for this lamp, so confirm the existing ballast label before ordering.
Starting temperature: Minimum starting temperature is a function of the ballast; consult the ballast manufacturer.
Sylvania catalog notes for this lamp:
- May be operated at 100 watts (1000 mA), the same as an F84T12/HO.
- SAFELINE coated lamps use a non-shattering covering that contains glass and other lamp components if the lamp breaks. The covering must stay intact or the lamp must be replaced.
- SAFELINE lamps are for indoor use only, in ambient temperatures below 135°F. Use sockets that provide adequate pin-to-socket contact, and do not use with defective ballasts, sockets, or improper wiring.
Before ordering, confirm:
- Existing lamp model matches F72T12D835HOSL or an approved equivalent.
- Fixture socket matches R17d Recessed Double Contact.
- Wattage is 85W and the ballast is compatible.
- Color temperature is 3500K Designer 800.
- Physical size is 72 in nominal length (70 in MOL) x 1.5 in diameter.
Ordering Information
- Brand: Sylvania
- Product Code / Model: 25283 / F72T12D835HOSL
- Description: 85W T12 SAFELINE Shatter-Resistant Coated High Output fluorescent lamp, 3500K Designer 800, 6,620 lumens, R17d Recessed Double Contact base
- Specifications: Taken from the Sylvania linear fluorescent lamp catalog; specifications are subject to change without notice.
Safety & Handling Notes
- Disconnect power before installing or servicing.
- Use only in approved fixtures designed for compatible F72T12D835HOSL lamps.
- Fluorescent lamps contain mercury and should be recycled or disposed of according to local regulations.
- Follow the fixture manufacturer's instructions and local electrical codes for installation.
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.
