The Altman 39 Watt HMI Bulb has a ceramic base, and burns at a Kelvin temperature of 3000°. It fits the Altman 39 watt CD Shakespeare Series spotlights.
| Code | CDM/35W/T6/830 |
| Application | Ceramic Discharge Metal Halide Spotlight |
| Watts | 39 |
| Volts | Not specified by manufacturer |
| Color Temperature | 3000°K |
| Average Life Hours | 10,000 |
| Approx. Lumens | 3400 |
| Base Type | G12, 2-pin ceramic |
| Filament Type | Burn in any position |
| Length | 3.94" (100mm) |