- ProfiLux II Outdoor special offer
- Buy expansion cards now!
- ProfiLux 3 eX Megapack from 20. June to 10. July 2011!
- 20% discount for light bars!
- ProfiLux II eX Freshwater-Set
- Steckdosenleiste STDL4-4
- New sets / introductory discount!
- Special offer Easter 2013
- Group Buys in effect (North America only)
- massive deal for USA clients
- Special offers announcements with our newsletter
- GHL Summer Deal - 10% off!
- Only for a limited time: 20% discount of GHL Dosing pump units
- One of the best LED-luminaires for aquariums for an unbelievable price!
- Cyber Weekend - Accessories 25% off!
- Price reduction for slave dosers!
- ProfiLux Set + Mitras LX for a crazy price - only for a short while!
- Black Friday Madness 2015
- Clearing stock
- High-Power LED light Mitras LX - Save 20% in our Summer Promotion
- Celebrating the German Unity Day: Coupons for 4000€ / $4000!
- Mitras LX7 with pre-order discount only until 11/13/2016
- Win a Mitras LX7!
- Cyber Week at GHL
- Last chance: 100 Mitras LX 6 for special price!
- ProfiLux 3 Sets: Huge price reduction now!
- Start of Aquatics Season 2018: Special Offer High-Power LED-fixture Mitras LX7
- Cyberweek at GHL - save 10% on Mitras LX7, ProfiLux Sets, KHD Sets
- Enter to win GHL goodies!
- KH Director & Doser 2.1 Premium-Sets - until 17. July 2019 only!
- Cyberweek 2019: 10% off on ProfiLux Sets!
- ION Director: 15% pre-order discount ...
- GHL Easter Sale is happening now!
- GHL Memorial Day Sale - 15% off Mitras LX7 fixtures!
- GHL Doser 2.1 NOW ON SALE - 20% OFF
- The GHL Black Friday Sale has BEGUN!
- Versia pumps and controller: NOW 15% introductory discount!
- Mitras LX7 Christmas Flash Sale
- USA: Versia pumps and controller: 15% introductory discount!
- 4th of July SITEWIDE FLASH SALE! (ProfiLux, Doser, Mitras and More)
- Tank getting too hot? How about we help you cool it down? - 20% OFF FLASH SALE