Spotlamps
Description
Lamps with integral dichroic reflectors efficiently collect and direct only the visible output of the bulb, reducing system heat load. The spotlamps give a narrow beam, whilst the focusing lamps form an intense spot of light at the focal distance stated.
Over- and under-running
Long-life lamps have lower luminance and efficiency than short-life types. The balance can be adjusted by running lamps at higher or lower than the rated voltage. The effect of this should be verified by trials but can be estimated by the following useful rules of thumb.
Life is proportional to V-12
Wattage is proportional to V1.5
Output is proportional to V3.5
Technical note available - 'Design of Illumination Systems'. Please enquire.
| Item code | LIF/ANSI | Voltage (V) | Wattage (W) | Central intensity (cd) | Full beam angle | Type | Price per item (£ GBP) |
Stock available | Volume discount available |
Datasheets & customisation options |
Select amount |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 LP 75 | EYF | 12 | 75 | 11200 | 14° | 51mm dia., GX5.3 base, 3000hr life | £3.63 | ||||
| 12 LP 50 | M/49 | 12 | 50 | 12000 | 10° | 51mm dia., GX5.3 base, 3000hr life | £3.27 | ||||
| 12 LP 35 | M/65 | 12 | 35 | 9000 | 8° | 35mm dia., GZ4 base, 2000hr life | £9.08 | ||||
| 12 LP 20 | M/52 | 12 | 20 | 5500 | 10° | 35mm dia., GZ4 base, 2000hr life | £7.38 | ||||
| 12 LP 12 | M/64 | 12 | 12 | 6400 | 7° | 35mm dia., GZ4 base, 2000hr life | £6.78 | ||||
For more information regarding stock availability icons, please see our shipping page.
