... 4-leaf barndoor, electronic ballast/conventional ballast, and head to ballast cable. HMI 4000W Compact Complete with lamphead,4-leaf barndoor ... , electronic ballast/conventional ballast, and 7m/15m head to ballast cable. Lamphead with 4-leaf Barndoor Universal Electronic ballast 2500 ... /4000W Conventional Ballast :4000W 7m/15m Head to Ballast Cable Stand Size(mm): 425Lx538Wx540H Weight(kg):20.5 ...