Metal-halide (long-arc) lamp for PCB, screen-printing and plate exposure units, 185 mm, gallium-doped (Ga). Also listed as Ushio 25520303, Heraeus 45002211 and 13 more part numbers.
Send the part number, a photo of the old lamp and your exposure unit model. We check length, base, doping and power and quote within 24 hours.
The same lamp — same overall length and spectrum — appears under all of these numbers in published replacement-lamp catalogues. Brand names identify the original part only.
| Brand | Part number(s) |
|---|---|
| Ushio | MHL 5000 S · 25520303 |
| Heraeus | 45002211 · 45006072 · RQ 4131 Z1 KC · RQ 4129 Z1 KC |
| Theimer | 820590 · TRS 5000 · THS 5000 |
| Philips | HPM 3008 |
| BLV | MHL 5000 S · 25520303 |
| Starna | STR 50000 |
| Sylvania | MO 26.2 |
| Kuehnast | 5000-0S |
| Amba | AM 611 XS |
Shown for navigation only — a lamp only fits if length, base and doping all match your unit.
In published replacement-lamp catalogues the same lamp (same overall length and spectrum) is listed under 16 part numbers: Ushio MHL 5000 S, Ushio 25520303, Heraeus 45002211, Heraeus 45006072, Heraeus RQ 4131 Z1 KC, Theimer 820590, Theimer TRS 5000, Philips HPM 3008, BLV MHL 5000 S, BLV 25520303, Heraeus RQ 4129 Z1 KC, Theimer THS 5000, Starna STR 50000, Sylvania MO 26.2, Kuehnast 5000-0S, Amba AM 611 XS. Confirm the length, base and doping of the lamp in your unit before ordering.
Yes — send the part number on your old lamp, a photo of its label and ends, and your exposure unit model. We check overall length, base, doping and power against the original before we quote, and quote within 24 hours.
The metal added to the mercury fill (iron, gallium or none) sets which UV and violet wavelengths the lamp emits. Your dry film, solder mask, screen emulsion or printing plate is sensitised to particular wavelengths, so the replacement should carry the same doping as the original.
Specifications and cross-references compiled from published lamp-maker data (Ushio, Alpha-Cure) and a US replacement-lamp distributor's catalogue. Where sources differ the values are shown side by side. Data is given for identification only — verify against your unit's manual. Lamps supplied by Kilowatt Lamps are compatible replacements and are not made by or affiliated with the brands named.