Philips master 10watt pl-c 4 pin energy saving bulb price is valid for 10 pieces purchase. minimum purchase is 10 pieces. maximum 50 pieces of this product can be ordered. swordslife reserves the right to cancel orders over 50 pieces. more than 10 stocks are offered to be sold at the campaign price. the seller determines the selling price of the product you have examined. this product is not included in the discount campaign. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.