Easy Grow - Lumatek - Trilite - Osram - Elektrox - Ostalo - Phytolite - Lux-Helios - GSE - Nanolux - Light Interaction - Air cooled reflectors
The advantage of air-cooled reflectors is that the bulb can be cooled. This extends the life of the bulb. This type of reflectors are suitable for HPS and MH bulbs.