Product Overview
GE 88546 BTM-Q500T6/4CL/2P – 500W Quartz Halogen Lamp, P28s Base, 3200K
The GE 88546 (BTM-Q500T6/4CL/2P) is a 500-watt Quartzline® tungsten halogen lamp with a P28s base, rated at 3200K color temperature. It carries a 150-hour rated average life and delivers 13,000 initial lumens. This item was renumbered from GE product 16465 to 88546; both numbers refer to the same lamp. This lamp is stocked by ADL Supply for stage, studio, and entertainment lighting replacement programs.
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WATTAGE
500W
GE Stage & Studio
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LUMENS
13,000 lm
Initial output
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CCT
3200K
Color temperature
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BASE
P28s
T-6 bulb
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LIFE
150 hrs
Rated average life
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Technical Specifications
| Manufacturer | GE (Current Lighting) |
| Product Line | GE Stage and Studio Lamps |
| Order Code | 88546 — formerly 16465 |
| Description / Ordering Abbreviation | BTM-Q500T6/4CL/2P |
| ANSI Code | BTM |
| Wattage | 500W |
| Bulb Shape | T-6 |
| Base | P28s |
| Voltage | 120V |
| Pack Quantity | 12 per case |
| Initial Lumens | 13,000 lm |
| Design Color Temperature | 3200K |
| Rated Life | 150 hours |
| Filament Type | C-13 |
| MOL (Maximum Overall Length) | 5.12" |
| Burning Position | BDTH |
Product Overview
The 88546 is a GE Quartzline® tungsten halogen lamp from GE's Stage and Studio line, built for 3200K color-consistent output over a 150-hour rated life. It uses a T-6 quartz envelope with a P28s base rated for 120V operation.
Quartz halogen lamps are designed to be operated within close voltage tolerances; excessive voltage can drastically shorten life even as it raises light output. GE recommends contact pins be kept clean, since oxidation above 350°C can cause arcing and irreparable damage to both lamp and lampholder. This item was renumbered from GE product 16465 to 88546; both numbers refer to the same lamp.
Compatible Applications
- Studio and broadcast lighting fixtures
- Stage and theatrical lighting instruments
- Followspots and profile/Fresnel fixtures rated for this wattage and base
- Retrofit replacement in fixtures originally specified for this order code
Before Ordering – Verify
- Confirm the base type (P28s) and voltage (120V) match your fixture before ordering.
- Do not exceed 110% of rated voltage; overvoltaging shortens life and raises seal temperature.
- Confirm burning position (BDTH) matches your fixture's mounting orientation.
- This lamp was formerly sold under GE product code 16465 — confirm you are ordering current stock under 88546 (BTM-Q500T6/4CL/2P).
Safety and Handling Guidelines
- Turn power off before inspection, installation, or removal — risk of electrical shock.
- Keep combustible materials away from the lamp and use only in a fixture rated for this product — risk of fire.
- Pressurized lamp: unexpected rupture may cause injury, fire, or property damage. Use eye protection and do not touch the glass with bare hands.
- Do not use the lamp if the outer glass is scratched or broken; operate only in the specified position; do not exceed 110% of rated voltage.
- Allow the lamp/fixture to cool before handling; turn power off before installing the lamp; dispose of a broken lamp in a closed container.
Compliance
- Dispose of/recycle per federal, state, and local regulations for lamp components.
- ANSI code BTM — confirm ballast/transformer compatibility before installation.
- UL Standard 1572 enclosed-fixture rating applies where noted (see Before Ordering).
Ordering Information
- Order Code: 88546 (formerly 16465)
- Description: BTM-Q500T6/4CL/2P
- Pack Quantity: 12 per case
- Contact ADL Supply for current wholesale pricing and stock availability.
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.
