High Output Compact Fluorescent self ballasted, screw in medium and mogul base, 40 to 105 watts, 150 watt, and 200 watt, 120 and 277 volts. Color temperatures include 2700K (Warm Tone/ Plant Light), 4100K (Cool White), 5000K (Natural Day Light), and 6500K (Day Light/Plant Light). Adaptors are available for medium to mogul base, or mogul to medium base. Maxlite, Elong - Longstar, Eiko. Call or email for items not listed.